Yearly Archives: 2025

　　With the development of science and technology and the accelerated pace of life, people’s demand for payment methods has gradually changed to convenience and efficiency. Under this background, various electronic payments and digital currency emerge one after another, but some payment scenarios in real life still need practical and convenient solutions. At this time, the emergence of icash prepaid cards undoubtedly provides a simple and effective choice for our payment life.for a long time icashµ„ø® It has an extraordinary development speed, and I believe that the future will be as overwhelming as ever. https://www.icash.uno/

　　Icash prepaid card is a kind of prepaid card. Users can recharge a certain amount of money into the card by purchasing this card, and then use it directly during consumption. Compared with the traditional cash payment, this method greatly simplifies the transaction process, and eliminates the cumbersome wallet management and the trouble of change. Whether shopping in shopping malls, dining in restaurants or even in daily small consumption, icash prepaid card can complete payment efficiently, completely releasing users’ time and energy.

　　In the process of use, the operation of icash prepaid card is very simple. You can easily complete the payment just by handing the card to the cashier, entering the password or scanning the code for confirmation. In any case, users can easily complete the transaction during the busy working hours in the morning or in the leisure afternoon on weekdays, avoiding all kinds of inconvenience caused by carrying cash. This convenience is particularly important, especially in the current social background that pays attention to efficiency.

　　Moreover, the application scope of icash prepaid cards is quite extensive. At present, it has covered many supermarkets, restaurants, entertainment and other industries. Users can choose suitable places to spend according to their own needs. On the one hand, using prepaid cards can not only save the time of payment, on the other hand, many merchants often provide additional preferential activities when using such cards to pay, helping users to further reduce their consumption burden. This dual advantage makes icash.

　　Security is also a highlight of icash prepaid cards. Compared with carrying a lot of cash, using prepaid cards is undoubtedly safer. Even if you accidentally lose them, you can stop the loss in time through related loss reporting services to protect your own funds. At the same time, the use of prepaid cards also avoids the common problems of shopping fraud and inconvenient payment. Therefore, more and more people are willing to choose this payment method to protect their money.

　　In the rapidly developing digital age, people’s lifestyles and consumption habits are constantly changing. In this process, adopting an effective payment method is not only to enhance convenience, but also to pursue the quality of life. With its convenient characteristics and strong applicability, icash prepaid cards meet the needs of modern consumers and make payment easier.

　　The payment method represented by icash prepaid card is not only a simple tool, but also brings a brand-new consumption experience. On this fast and convenient payment road, icash prepaid card undoubtedly plays an important role. In the future, with the further progress of science and technology and the improvement of people’s requirements for quality of life, prepaid cards will be more widely used and become an indispensable part of daily life.

　　In today¨s fast-paced world, power efficiency is crucial. Whether you¨re powering high-performance electronics, complex devices, or appliances, having a reliable and efficient power source can make all the difference. A high-performance 200W power adapter is not only designed for superior functionality but also plays an essential role in saving both time and energy. In this article, we will explore how these power adapters can benefit various applications and why choosing one from a trusted manufacturer like JYH Electronics can significantly enhance your overall experience.from professional power adapter manufacturerr Looking at the development prospects, the future will always bring positive effects. https://www.jyh-electronic.com/

　　What is a 200W Power Adapter?

　　A 200W power adapter is a versatile, high-capacity unit designed to provide steady and reliable power to a variety of electronic devices. With a power output of 200 watts, these adapters are powerful enough to handle more demanding loads, ensuring that your devices run efficiently and safely. The high-performance power adapter can be used across different industries, including consumer electronics, medical equipment, industrial applications, and more.

　　How a High-Performance 200W Power Adapter Can Save You Time and Energy

　　Key Features of a 200W Power Adapter

　　1.High Power Output: A 200W power adapter delivers sufficient power for devices requiring medium to high power consumption. This output is ideal for electronics such as laptops, gaming consoles, LED lighting, and even some industrial machinery.

　　2.Compact Design: Despite its high output, the adapter is designed to be compact and easy to integrate into various systems. Manufacturers like JYH focus on providing solutions that do not compromise on space, ensuring that the adapter fits into tight spots while delivering optimal performance.

　　3.Energy Efficiency: One of the key benefits of a high-performance 200W power adapter is its energy efficiency. A good quality adapter ensures that the conversion of AC to DC power happens with minimal loss, reducing electricity wastage and improving overall device performance.

　　4.Overload and Short-Circuit Protection: Safety is a priority. High-performance power adapters are equipped with features like overload protection and short-circuit protection to ensure that the devices connected to them remain safe from potential damage caused by electrical fluctuations.

　　5.Wide Input Range: Many 200W power adapters, especially those from reputable brands like JYH Electronics, offer a wide input voltage range, allowing them to be used in various global markets with different electrical standards.

　　In today’s fast-paced world, the need for efficient and reliable power solutions has never been more important. One such solution that has gained popularity for its convenience and effectiveness is the 5W plug-in power adapter. Whether you’re powering small electronics, portable devices, or home appliances, this compact and energy-efficient option provides a range of benefits. In this article, we’ll explore the advantages of using a 5W plug-in power adapter for small devices and why it could be a game-changer for your charging needs.In the industry, professional power adapter manufacturerr Has been a leader in the industry, but later came from behind but never arrogant, low-key to adhere to quality. https://www.jyh-electronic.com/

　　The Benefits of Using a 5W Plug-In Power Adapter for Small Devices

　　1. Energy Efficiency

　　One of the primary benefits of using a 5W plug-in power adapter is its energy efficiency. Unlike larger adapters designed for higher power outputs, a 5W adapter consumes less power, making it an ideal choice for smaller devices that don’t require high wattage to function properly. Whether it’s a smartphone, tablet, or small electronic gadget, the 5W adapter ensures that you’re only using the amount of energy needed to charge the device, helping to reduce energy waste and save on electricity bills.

　　2. Compact and Lightweight Design

　　The 5W plug-in power adapter is designed to be compact and lightweight, making it a perfect solution for on-the-go charging. Its small size means it won¨t take up much space in your bag or workspace. This is especially important for travelers or individuals who need to carry multiple devices with them. The lightweight and portable nature of the 5W adapter make it easy to pack, store, and use wherever you go.

　　3. Safety Features

　　When using electrical products, safety is always a top priority. 5W plug-in power adapters typically come equipped with built-in safety features like overcurrent protection, short-circuit prevention, and overvoltage protection. These safety mechanisms ensure that your devices are charged safely without the risk of overheating or damaging the internal components. By investing in a 5W adapter with these features, you can ensure both the longevity of your devices and your personal safety.

　　With the rapid development of modern financial technology, the popularity of cryptocurrency is increasing day by day, and people are especially interested in the trading and exchange of various cryptocurrencies. Finding a convenient and efficient trading platform has become an important demand of today’s users. As a new cryptocurrency trading platform, icash.one has won the favor of many users with its rich exchange options and user-friendly interface.according to icash≥‰÷µø® Industry veterans said that its development will still be in a good situation. https://www.icash.uno/

　　When choosing a trading platform, users often consider factors such as security, transaction costs, simplicity of processes and types of currencies supported. official website of icash.one has designed and planned in detail for these needs. The platform provides a variety of exchange options for cryptocurrencies, and users can choose the appropriate currency for trading according to their own needs. This diversified choice undoubtedly provides users with greater flexibility. Especially in the current market of digital assets, various new cryptocurrencies emerge one after another, and users can easily realize the conversion between different currencies through this platform, which meets the diversified needs of different investors and traders.

　　In addition to the rich exchange options, security is also the focus of icash.one. Whether it is the safety of users’ funds or the information in the transaction process, the platform has adopted a series of security measures, adopting advanced encryption technology, which can effectively protect users’ account information and transaction data from being leaked. In addition, the platform has set up multiple authentication mechanisms to ensure that only authenticated users can operate funds, which makes users feel more at ease and reduces the potential.

　　In addition to security, the interface design of icash.one is also very intuitive. The user-friendly operation process enables even users who are not familiar with cryptocurrency to get started in a short time. The platform interface is concise and clear, and the layout of various functions is reasonable, so that users can quickly find the required options when exchanging. This humanized design has significantly improved the user experience and made more people willing to try and participate in cryptocurrency transactions. In the exchange process, the problem of hidden costs has always been the focus of investors’ attention. icash.one is famous for its transparent transaction costs, and there is no setting of hidden costs, so that users can know fairly well when trading in digital currency, and can better plan their own investment strategies. During the exchange process, the platform clearly shows the cost details of each step, which makes users more reference when making decisions.

　　It is worth mentioning that icash.one also pays close attention to the market dynamics and updates the types of currencies supported by its platform in time to adapt to the rapidly changing market demand. With the continuous emergence of emerging currencies, the platform strives to include the currencies that users are most concerned about in the exchange options, providing users with more trading opportunities. This forward-looking layout not only meets the needs of existing users, but also attracts more new users to join.

　　In the ever-changing financial environment, icash.one has won the trust of users with its continuously optimized functions and stable service quality. By offering a variety of cryptocurrency exchange options, the platform not only helps users easily realize flexible asset allocation, but also creates more investment opportunities for them. With the increasing global awareness and acceptance of digital currency, such a trading platform will surely play an increasingly important role in the future. With its rich exchange options, secure transaction guarantee, user-friendly interface and transparent fee structure, icash.one actively responds to market demand and strives to provide every user with a high-quality transaction experience.

　　1 IntroductionIn some cases, high powered laser pointer The advantages will become more and more obvious, and it will be able to develop indomitable after market tests. https://highpowerlaser.shop/collections/burning-laser

　　Laser beam synthesis has been proposed and widely studied and applied in order to overcome the challenges encountered in improving the performance of single laser beams. As early as the 60s of the 20th century, Mr. Liu Songhao [1″ target=_blank> pointed out in the article “The Development Status of Lasers”: “In terms of device structure, in order to increase the output energy of a single rod-shaped working substance, in addition to increasing the length and diameter of the rod and increasing the energy density of the excitation light source, a multi-light source excitation device can be used. In order to increase

　　With the addition of output energy, dozens or even hundreds of devices can be coupled to form a so-called light maser array. The use of a maser array not only has the potential to greatly increase the output energy of the device, but also reduces the divergence angle of the output beam

　　Few. This approach has the potential to be one of the ways to develop high-energy devices. “The results of the literature survey show that the research process of laser beam synthesis is almost synchronous with that of lasers [2” target=_blank>

　　。 As stated in Ref. [1″ target=_blank>, “The implementation of the light maser array is very difficult, and many complex scientific and technical problems must be solved. ￣

　　Since the beginning of the 21st century, fiber laser has been fully developed. With the overlapping factors such as the modularization of fiber lasers, the superior performance of fiber devices, and the rapid development of information technology, important progress has been made in laser beam synthesis technology with fiber lasers as typical units [3-12″ target=_blank>, which has become a scientific frontier and key research direction in the field of lasers, and has been an important topic of international conferences such as Photonics West and Advanced Fiber Laser.

　　The domestic research results are also very fruitful, with scientific and technological journals successively publishing special albums [13-14″ target=_blank>, comprehensive academic conferences setting up special seminars [15″ target=_blank>, and beam synthesis gradually realizing the empowerment of laser systems [16″ target=_blank>. There are many types of lasers that can be synthesized and technical solutions for synthesis [17-23″ target=_blank>. Ref. [24″ target=_blank> provides a comprehensive analysis of the progress of laser beam synthesis from 2011 to 2020, covering all laser types. Ref. [25″ target=_blank> focuses on the progress of fiber laser coherent synthesis. In this paper, we comprehensively review the research progress of various synthesis technologies in recent years from multiple perspectives such as power synthesis, spectral synthesis, coherent synthesis and composite synthesis, analyze the development trend, summarize the research experience, and refine the latest trends, so as to provide reference for scientific research, teaching and application personnel in the field of fiber laser and beam synthesis.

　　2 Power synthesis

　　Power synthesis is the most common laser synthesis method [26″ target=_blank>, which can generally be divided into two categories: space power synthesis and all-fiber power synthesis. Among them, space synthesis generally refers to the control of the optical axis of each laser beam to make it pass

　　Free transmission or focusing and other methods to achieve spot coincidence at the target. Their common feature is that the beam quality is reduced while increasing the power [27″ target=_blank>. The pigtail coupled diode laser, which is commonly used in the development of fiber lasers, mostly adopts the method of spatial synthesis in its internal structure. For fiber lasers, most of the reports on spatial synthesis have focused on the development of high-power fiber laser systems [28″ target=_blank>. In recent years, there have been few reports on technology.

　　In contrast, all-fiber power synthesis has been a hot topic in laser synthesis in recent years, and its typical structure is shown in Figure 1 [29″ target=_blank>. As early as 2013, IPG Photonics reported that the world’s first 100 kW high-power fiber laser system was realized based on the power synthesis of 90 kW lasers, which was successfully applied to the field of laser processing [30″ target=_blank>. Soon after, a high-power fiber laser system in the 120 kW class was reported. The key to all-fiber power synthesis is the low-insertion-loss, high-power adaptive power combiner, which IPG Photonics’ homepage envisions for a 500 kW power output [31″ target=_blank>.

　　With the improvement of traction and power combiner performance required by applications, in recent years, several units have realized 100 kW fiber laser systems based on all-fiber power synthesis. In 2021, the University of South China and Ruike Gong

　　The company reported the first 100 kW fiber laser system in China [32-33″ target=_blank>; In 2024, Kaplin, Han’s, and Chuangxin have successively reported high-power fiber laser systems ranging from 150 kW to 200 kW [29,34-36″ target=_blank>. As long as the power beam combiner has sufficient “brightness redundancy” (i.e., the product of the diameter of the output pigtail and the numerical aperture is greater than the sum of the diameter and numerical aperture of all input fibers), then there is great potential to achieve low insertion loss and high power acceptance. Of course, the product of the diameter of the output pigtail and the numerical aperture also determines the beam quality of the output laser, which determines the application scenario and application effect.

　　In addition to continuing to increase the output power, there are three trends worth paying attention to in the power synthesis of all-fiber structures. The first is the development of ultra-high power fiber laser systems of 100 kW (or more) based on all-fiber power synthesis, which not only drives technological progress in the direction of laser devices and laser technology, but also promotes the development of advanced optoelectronic measurement [37″ target=_blank>. For example, the 150 kW fiber laser system reported in Ref. [35″ target=_blank> has been criticized by researchers because the output power exceeds the range of common calorimetry-based laser power meters

　　The innovative use of optical pressure-based power measurement methods [38″ target=_blank> provides a solution for direct measurement of higher power lasers. The second is the quality (brightness) of the laser beam synthesized by power. As mentioned above, if the product of the diameter of the output pigtail and the numerical aperture is large enough, then ultra-high power output can be achieved

　　But the quality of the output laser beam will deteriorate. The author has noticed that in 2009, IPG Photonics announced a project to achieve an output power of more than 50 kW and a beam quality of M2 through multi-laser all-fiber power synthesis (e.g., phase control [25″ target=_blank>) are possible.To further improve the beam quality of the system output, for example, Ref. [40″ target=_blank> has achieved a highly stable near-single-mode 10,000-watt laser output, and the mode control based on photonic lanterns [41″ target=_blank>, which has attracted much attention in recent years, is essentially in this category.

　　INTRODUCTIONFrom some points of view, high power laser It is the core driving force to better promote the rapid development of the surrounding markets. https://highpowerlaser.shop/collections

　　Since the birth of the laser in 1960, achieving high output power has been one of the eternal themes in the development of laser technology. The process of increasing laser energy is always accompanied by thermal energy, and thermal energy is useless in this process, “laser energy” and “thermal energy” are the highest and lowest quality forms of energy respectively, and the history of the development of high-power laser technology is a history of struggle with “waste heat”.

　　The first ruby laser[1″ target=_blank> that marked the birth of lasers in 1960 was a solid-state laser. Solid-state lasers usually use activated ion-doped crystals, ceramics and glass as the gain medium, and their gain medium forms include conventional bulk materials and low-dimensional materials represented by optical fibers. After the birth of solid-state lasers, on the one hand, the wavelength coverage was expanded, from the initial red light to short-wave green light, blue light, ultraviolet, deep ultraviolet development, long wavelength

　　Lasers have matured and commercialized in the near-infrared and mid-infrared bands, and on the other hand, the laser pulse width has been narrowed from microseconds (μs) to nanoseconds (ns), picoseconds (ps), and femtoseconds (fs), and attosecond (AS) lasers are expected to be engineered [2-3″ target=_blank>. The realization of high output power in any application scenario is the common goal of laser technology development [4-6″ target=_blank>.

　　With the increase of pump power, the thermal effect inside the gain medium is significantly enhanced, and the heat generated cannot be removed from the medium in time through heat conduction, resulting in an increase in the internal temperature and temperature gradient of the medium, and the thermal lensing effect and stress birefringence effect caused by the internal thermal distortion seriously deteriorate the beam quality and limit the further increase in power [7″ target=_blank>. In order to suppress the thermal effect, researchers have designed different types of solid-state lasers, such as heat-capacity lasers, thin-slice lasers, slat lasers, and fiber lasers [8″ target=_blank>, with the core idea of improving heat dissipation efficiency. In this paper, the working characteristics and research progress of the above solid-state lasers are briefly reviewed. In addition, based on the current theoretical and experimental research on the thermal conductivity (κ) of crystalline materials, from the perspective of improving the thermal conductivity of gain dielectric materials, the thinking and prospect of solving the thermal effect problem are proposed.

　　1 High-power lasers

　　1. 1 heat capacity laser

　　Heat-capacity lasers reduce the thermal distortion of gain materials by separating the working phase of the laser from the heat dissipation phase in time. When the heat capacity laser is working, the gain medium is in an approximately adiabatic environment, and its internal temperature gradient is small, and the resulting thermal distortion is also small. The internal accumulation of waste heat increases the temperature of the gain medium, which must be forced to cool after a period of continuous operation, depending on the thermodynamic properties of the material itself. Because the gain medium does not dissipate heat from the outside during the laser operation stage, its surface temperature is higher than that inside, and the compressive stress on the surface can greatly increase the damage threshold of the medium, and the allowable laser pumping strength is 5 times that of the surface in the state of tension. The output of a heat-capacity laser depends on the product of the gain medium and the temperature range of the laser that it can generate, so it is not only required that the gain dielectric material have a large heat capacity value, but also that the luminescence efficiency of the internally activated ions is less affected by the increase in temperature [9″ target=_blank>.

　　As early as 1994, Walters et al. [10″ target=_blank> used a heat-capacity laser with flash-pumped rod-shaped neodymium glass as the gain medium to achieve a pulsed laser output with an average power of more than 1 kW and a duration of several seconds, proving the feasibility of the heat-capacity laser scheme. Subsequently, the Lawrence Livermore national laboratory (LLNL) in the United States used large-size Nd3+｜Glass, Nd3+｜Gd3 Ga5 O12 (GGG) crystals, and Nd3+｜Y3 Al5 O12 (YAG) ceramics as the gain medium to carry out the research of solid-state heat-capacity lasers (see Fig. 1) [11″ target=_blank>: In 2001, LLNL used flash lamps to pump 9 pieces10 The cm〜10 cm Nd3+｜Glass obtained a pulsed laser output with an average power of 13 kW. In 2004, LLNL used a laser diode array to pump four 10cm〜10 cm Nd3+:GGG crystals to achieve 45 kW laser output. In 2006, LLNL used a laser diode array to pump five 10 cm 〜 10 cm Nd3+:YAG ceramics with an output power of up to 67 kW and a pulse duration of 500 ms. By introducing a real-time adaptive optical correction system in the cavity, the beam quality control was within 2 times the diffraction limit, and the laser running time was increased to 5 s [12″ target=_blank>.

　　Heat-capacity lasers have two important limitations: (1) the laser beam quality degrades rapidly with the increase of light generation time [13″ target=_blank>; (2) The cooling time of the gain medium accounts for 80% of the entire working cycle, which determines that the heat capacity laser cannot work at high frequency, and the working time in seconds is difficult to meet the practical requirements.

　　1. 2 thin-slice lasers

　　The gain medium of the thin slice laser is a thin sheet with a thickness of less than 1 mm, which is fixed to a rigid substrate that dissipates heat by solder, and the bottom surface of the contact acts as a cooling surface and also acts as a reflective surface for the laser and pump light, and the other side acts as a high transmission surface. Since the direction of heat flow and the direction of laser propagation are basically the same, the wavefront distortion caused by the temperature gradient can be largely ignored, resulting in a high beam quality laser output. The advantage of thin-slice lasers is that they maintain high beam quality at high power outputs. Thin-slice lasers are available in two types of pumping methods: end-pumping and side-pumping, as shown in Figure 2 [14″ target=_blank>.

　　Due to the short propagation distance of light in a single sheet, the gain capacity is limited, and the maximum output power is currently 5 kW [15″ target=_blank>, and further power increases require the cascade of multiple lamella for amplification (see Figure 3 [16″ target=_blank>). In 2000, Stewen et al. [17″ target=_blank> achieved a continuous laser output of 647 W in a single Yb3+｜YAG thin slice by end-pumping, and a maximum laser output of 1070 W by combining four thin slices. In 2009, the Boeing Company pumped 10 Yb3+:YAG thin slices to obtain a laser output of 28 kW, with a laser duration of several seconds and a beam mass close to the diffraction limit [18″ target=_blank>. The commercial thin-slice laser developed by Trumpf in Germany is capable of producing a continuous laser with a stable output power of 18 kW. Theoretical calculations show that the maximum output power of a single sheet is about 30 kW [15″ target=_blank>, and it is clear that the current experimental results are still quite far from the theoretical value.

　　At present, the main problems of thin slice lasers are: (1) high requirements for crystal thin slice processing and welding process; (2) The gain capacity of a single sheet is limited, and the cascade of multiple pieces will make the optical path of the system extremely complex, which requires high precision assembly and adjustment ability of the system.

모모1 IntroductionFor the immediate pressure, high powered laser pointer With its own coping style, it can break the predicament and usher in a new life through the quality of the product itself. https://highpowerlaser.shop/collections/burning-laser

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모모Laser diode pumping solid-state lasers (DPLs) have attracted great interest due to their high efficiency, high beam quality, compact structure and long life. In recent years, with the successful development of high-power diode lasers, the development of DPL and its application in military, industrial, medical, scientific research and other fields have been promoted.

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모모The heat loss of the laser diode (LD) accounts for more than 50% of the total power consumption during normal operation, and the instability of the working temperature of the laser diode caused by the heat loss will change its output wavelength, which will affect the efficient and stable output of the DPL. In addition, heat is generated during the light pumping of the laser crystal of a solid-state laser, which also needs to be cooled. With the increase of the power of the solid-state laser pumped by the laser diode, the heat load generated by the device is increasing, and the heat dissipation density is getting higher and higher, and the DPL cooling problem has become a technical difficulty in the current DPL research.

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모모In order to solve the problem of high-power DPL heat dissipation, many scholars at home and abroad have carried out a lot of research work in recent years, and proposed a variety of cooling methods such as microchannel liquid convection heat exchange, solid cooling, spray cooling and micro heat pipe cooling. In this paper, the research status of these technologies is reviewed and analyzed, and on this basis, microchannel boiling heat exchange cooling and liquid nitrogen cooling technologies are proposed.

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모모2 Technical Principles

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모모There are different types of high-power solid-state lasers, such as solid-state heat-capacitance lasers, new thin-slice lasers, fiber lasers, end-face pumping lasers, etc., although the shape and heat dissipation of each laser heat dissipation device are different, but its main heat dissipation devices are the pumping source and gain medium. The cooling principle of the pumping source and gain medium can be illustrated in Figure 1. According to the theory of heat transfer, laser cooling can be expressed as follows:

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모모In the formula, the heat dissipation is the heat dissipation capacity of the heat dissipation device, the 붸 is the convective heat transfer coefficient of the cooling working fluid in the heat sink channel, the heat exchange area of the heat sink channel, the wf is the temperature of the inner wall of the heat sink channel, and the f is the temperature of the cooling working fluid. 멊h is scattered

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모모Thermal device temperature. The purpose of laser cooling is to take away the heat dissipation of the heat dissipation device and ensure a certain temperature of the heat dissipation device.

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모모It can be seen from equation (1) that in order to improve the heat dissipation, the convective heat transfer coefficient of the cooling working fluid in the heat sink channel should be increased as much as possible, the heat exchange area of the heat sink channel should be increased, and the temperature of the cooling working fluid should be reduced. At the same time, the thermal conductivity of the heat sink is reduced, so that the temperature of the inner wall of the heat sink channel is uniform and as close to the temperature of the heat sink device as possible.

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모모3 Research status

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모모The research status of four cooling technologies, namely microchannel liquid convection heat transfer, solid cooling, spray cooling and micro heat pipe cooling, is reviewed and analyzed.

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　　Laser pointers have become an increasingly popular tool in a variety of applications, such as presentations, stargazing, and even entertainment. The 301 500MW green high-power laser pointer is a powerful option that stands out. With its superior features and versatility, this laser pointer offers a superior user experience.With the expanding influence of the industry, high power laser Our business is also constantly spreading, and the development of the market is also gradually advancing. https://highpowerlaser.shop/collections

　　The 301 500mw green light high power laser pointer is known for its green laser beam, which provides superior visibility compared to other colors. It operates at 500 milliwatts (MW) or 0.5 watts, making it more effective than a standard laser pointer. This power allows it to project bright and focused beams of light over long distances of up to several kilometers.

　　Experts are full of praise for the performance of the 301 500MW green light high power laser pointer. Dr. Samantha Thompson, an expert in laser technology, confirms: “The 301 500mw green high-power laser pointer offers significant advantages in terms of visibility and range. Its powerful beam makes it ideal for outdoor activities such as astronomy and even emergency signals. ￣

　　In addition to its powerful features, this laser pointer has a durable and compact design, ensuring easy portability. Its body is made of high-quality materials that can withstand daily use. The compact size makes it easy for users to slip it into their pocket or bag for easy access when they need it.

　　An important aspect to be aware of when using the 301 500mw green light high power laser pointer is safety. Due to its high power, it must be handled responsibly and with care. Direct exposure to light beams can be harmful to the eyes and skin, so proper precautions such as wearing protective eyewear should always be taken.

　　In order to further enhance the user experience, the 301 500MW green light high power laser pointer provides a variety of working modes. It can emit continuous beams of light or can be adjusted to produce different patterns, such as dots or stars. This versatility makes it suitable for a wide range of applications, including professional presentations or creating captivating visuals.

　　In addition, the 301 500MW green light high power laser pointer comes with a rechargeable battery that does not need to be replaced frequently. Not only does this save money in the long run, but it also reduces environmental waste. The battery life is impressive, providing longer use time before it needs to be recharged.

　　The benefits of a powerful laser beam

　　Improve visibility and range

　　One of the main advantages of the 301 500MW green light high power laser pointer is its powerful laser beam. Unlike low-power laser pointers, this model offers excellent visibility even in bright environments. Whether you’re giving a presentation in a well-lit room or pointing out the stars in the night sky, the 301 500MW green high power laser pointer ensures your beam is clearly visible.

　　And, the extended range of this laser pointer is particularly noteworthy. The higher power allows the beam to travel long distances, allowing it to be used in a variety of outdoor activities. Whether you’re a teacher, astronomer, or adventurer, having a laser pointer with long-range capabilities enhances your ability to interact with your surroundings.

　　”The power and range of the 301 500MW green high power laser pointer is outstanding. It penetrates ambient light, making it ideal for lecture halls or brightly lit conference rooms. ￣

　　Applications in astronomy and outdoor activities

　　Enhance your stargazing experience

　　Amateur astronomers can benefit greatly from the 301 500MW green high-power laser pointer. Its powerful beam can be precisely pointed in the night sky, making it easier to identify specific stars, planets, or constellations. In addition, the extended range allows astronomers to share their observations with others, even when observing through telescopes or binoculars.

　　Emergency signals and survival tools

　　In an emergency, a high-power laser pointer like the 301 500MW green light high-power laser pointer can be a lifesaver. Its intense beam can reach considerable distances, making it an effective tool for signaling rescuers during outdoor expeditions or search and rescue operations. Some models even come with additional security features, such as SOS mode, which emits a distress signal in Morse code.

　　Learn about laser safety

　　Responsible handling and precautions

　　Given the higher power of the 301 500MW green light high power laser pointer, it is crucial to handle it responsibly. Direct exposure to the laser beam may cause eye damage or skin burns. Therefore, it is crucial to never aim the laser at a person or animal, especially their eyes. When using the laser pointer outdoors, it is advisable to make sure that it does not traverse the flight path of the aircraft to avoid accidental distraction by the pilot.

　　The importance of protective eyewear

　　Protective eyewear is an important consideration when using a high-powered laser pointer. Laser goggles with an optical density appropriate to the wavelength of the laser should be worn to protect the eyes from accidental exposure. Always make sure you buy safety-certified goggles that are specifically designed for the power and wavelength of the laser pointer you’re using.

　　conclusion

　　The 301 500MW green high power laser pointer provides a powerful and versatile tool for a wide range of applications. Its high output power and superior range make it ideal for educators, astronomers, outdoor enthusiasts, and professionals. However, this laser pointer must be handled responsibly and the necessary safety precautions must be followed to prevent accidents and protect your own well-being and the well-being of others.

　　1 IntroductionIn order to achieve the goal, purple laser Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. https://highpowerlaser.shop/collections/frontpage

　　Laser beam synthesis has been proposed and widely studied and applied in order to overcome the challenges encountered in improving the performance of single laser beams. As early as the 60s of the 20th century, Mr. Liu Songhao [1″ target=_blank> pointed out in the article “The Development Status of Lasers”: “In terms of device structure, in order to increase the output energy of a single rod-shaped working substance, in addition to increasing the length and diameter of the rod and increasing the energy density of the excitation light source, a multi-light source excitation device can be used. In order to increase

　　With the addition of output energy, dozens or even hundreds of devices can be coupled to form a so-called light maser array. The use of a maser array not only has the potential to greatly increase the output energy of the device, but also reduces the divergence angle of the output beam

　　Few. This approach has the potential to be one of the ways to develop high-energy devices. “The results of the literature survey show that the research process of laser beam synthesis is almost synchronous with that of lasers [2” target=_blank>

　　。 As stated in Ref. [1″ target=_blank>, “The implementation of the light maser array is very difficult, and many complex scientific and technical problems must be solved. ￣

　　Since the beginning of the 21st century, fiber laser has been fully developed. With the overlapping factors such as the modularization of fiber lasers, the superior performance of fiber devices, and the rapid development of information technology, important progress has been made in laser beam synthesis technology with fiber lasers as typical units [3-12″ target=_blank>, which has become a scientific frontier and key research direction in the field of lasers, and has been an important topic of international conferences such as Photonics West and Advanced Fiber Laser.

　　The domestic research results are also very fruitful, with scientific and technological journals successively publishing special albums [13-14″ target=_blank>, comprehensive academic conferences setting up special seminars [15″ target=_blank>, and beam synthesis gradually realizing the empowerment of laser systems [16″ target=_blank>. There are many types of lasers that can be synthesized and technical solutions for synthesis [17-23″ target=_blank>. Ref. [24″ target=_blank> provides a comprehensive analysis of the progress of laser beam synthesis from 2011 to 2020, covering all laser types. Ref. [25″ target=_blank> focuses on the progress of fiber laser coherent synthesis. In this paper, we comprehensively review the research progress of various synthesis technologies in recent years from multiple perspectives such as power synthesis, spectral synthesis, coherent synthesis and composite synthesis, analyze the development trend, summarize the research experience, and refine the latest trends, so as to provide reference for scientific research, teaching and application personnel in the field of fiber laser and beam synthesis.

　　2 Power synthesis

　　Power synthesis is the most common laser synthesis method [26″ target=_blank>, which can generally be divided into two categories: space power synthesis and all-fiber power synthesis. Among them, space synthesis generally refers to the control of the optical axis of each laser beam to make it pass

　　Free transmission or focusing and other methods to achieve spot coincidence at the target. Their common feature is that the beam quality is reduced while increasing the power [27″ target=_blank>. The pigtail coupled diode laser, which is commonly used in the development of fiber lasers, mostly adopts the method of spatial synthesis in its internal structure. For fiber lasers, most of the reports on spatial synthesis have focused on the development of high-power fiber laser systems [28″ target=_blank>. In recent years, there have been few reports on technology.

　　In contrast, all-fiber power synthesis has been a hot topic in laser synthesis in recent years, and its typical structure is shown in Figure 1 [29″ target=_blank>. As early as 2013, IPG Photonics reported that the world’s first 100 kW high-power fiber laser system was realized based on the power synthesis of 90 kW lasers, which was successfully applied to the field of laser processing [30″ target=_blank>. Soon after, a high-power fiber laser system in the 120 kW class was reported. The key to all-fiber power synthesis is the low-insertion-loss, high-power adaptive power combiner, which IPG Photonics’ homepage envisions for a 500 kW power output [31″ target=_blank>.

　　With the improvement of traction and power combiner performance required by applications, in recent years, several units have realized 100 kW fiber laser systems based on all-fiber power synthesis. In 2021, the University of South China and Ruike Gong

　　The company reported the first 100 kW fiber laser system in China [32-33″ target=_blank>; In 2024, Kaplin, Han’s, and Chuangxin have successively reported high-power fiber laser systems ranging from 150 kW to 200 kW [29,34-36″ target=_blank>. As long as the power beam combiner has sufficient “brightness redundancy” (i.e., the product of the diameter of the output pigtail and the numerical aperture is greater than the sum of the diameter and numerical aperture of all input fibers), then there is great potential to achieve low insertion loss and high power acceptance. Of course, the product of the diameter of the output pigtail and the numerical aperture also determines the beam quality of the output laser, which determines the application scenario and application effect.

　　In addition to continuing to increase the output power, there are three trends worth paying attention to in the power synthesis of all-fiber structures. The first is the development of ultra-high power fiber laser systems of 100 kW (or more) based on all-fiber power synthesis, which not only drives technological progress in the direction of laser devices and laser technology, but also promotes the development of advanced optoelectronic measurement [37″ target=_blank>. For example, the 150 kW fiber laser system reported in Ref. [35″ target=_blank> has been criticized by researchers because the output power exceeds the range of common calorimetry-based laser power meters

　　The innovative use of optical pressure-based power measurement methods [38″ target=_blank> provides a solution for direct measurement of higher power lasers. The second is the quality (brightness) of the laser beam synthesized by power. As mentioned above, if the product of the diameter of the output pigtail and the numerical aperture is large enough, then ultra-high power output can be achieved

　　But the quality of the output laser beam will deteriorate. The author has noticed that in 2009, IPG Photonics announced a project to achieve an output power of more than 50 kW and a beam quality of M2 through multi-laser all-fiber power synthesis (e.g., phase control [25″ target=_blank>) are possible.To further improve the beam quality of the system output, for example, Ref. [40″ target=_blank> has achieved a highly stable near-single-mode 10,000-watt laser output, and the mode control based on photonic lanterns [41″ target=_blank>, which has attracted much attention in recent years, is essentially in this category.

　　1 IntroductionEven if there are obstacles to moving forward, strong laser pointer high power We should also persevere, forge ahead bravely, cut waves in the sea of the market, hang on to Yun Fan and strive for the first place. https://highpowerlaser.shop/collections/burning-laser

　　Laser beam synthesis has been proposed and widely studied and applied in order to overcome the challenges encountered in improving the performance of single laser beams. As early as the 60s of the 20th century, Mr. Liu Songhao [1″ target=_blank> pointed out in the article “The Development Status of Lasers”: “In terms of device structure, in order to increase the output energy of a single rod-shaped working substance, in addition to increasing the length and diameter of the rod and increasing the energy density of the excitation light source, a multi-light source excitation device can be used. In order to increase

　　With the addition of output energy, dozens or even hundreds of devices can be coupled to form a so-called light maser array. The use of a maser array not only has the potential to greatly increase the output energy of the device, but also reduces the divergence angle of the output beam

　　Few. This approach has the potential to be one of the ways to develop high-energy devices. “The results of the literature survey show that the research process of laser beam synthesis is almost synchronous with that of lasers [2” target=_blank>

　　。 As stated in Ref. [1″ target=_blank>, “The implementation of the light maser array is very difficult, and many complex scientific and technical problems must be solved. ￣

　　Since the beginning of the 21st century, fiber laser has been fully developed. With the overlapping factors such as the modularization of fiber lasers, the superior performance of fiber devices, and the rapid development of information technology, important progress has been made in laser beam synthesis technology with fiber lasers as typical units [3-12″ target=_blank>, which has become a scientific frontier and key research direction in the field of lasers, and has been an important topic of international conferences such as Photonics West and Advanced Fiber Laser.

　　The domestic research results are also very fruitful, with scientific and technological journals successively publishing special albums [13-14″ target=_blank>, comprehensive academic conferences setting up special seminars [15″ target=_blank>, and beam synthesis gradually realizing the empowerment of laser systems [16″ target=_blank>. There are many types of lasers that can be synthesized and technical solutions for synthesis [17-23″ target=_blank>. Ref. [24″ target=_blank> provides a comprehensive analysis of the progress of laser beam synthesis from 2011 to 2020, covering all laser types. Ref. [25″ target=_blank> focuses on the progress of fiber laser coherent synthesis. In this paper, we comprehensively review the research progress of various synthesis technologies in recent years from multiple perspectives such as power synthesis, spectral synthesis, coherent synthesis and composite synthesis, analyze the development trend, summarize the research experience, and refine the latest trends, so as to provide reference for scientific research, teaching and application personnel in the field of fiber laser and beam synthesis.

　　2 Power synthesis

　　Power synthesis is the most common laser synthesis method [26″ target=_blank>, which can generally be divided into two categories: space power synthesis and all-fiber power synthesis. Among them, space synthesis generally refers to the control of the optical axis of each laser beam to make it pass

　　Free transmission or focusing and other methods to achieve spot coincidence at the target. Their common feature is that the beam quality is reduced while increasing the power [27″ target=_blank>. The pigtail coupled diode laser, which is commonly used in the development of fiber lasers, mostly adopts the method of spatial synthesis in its internal structure. For fiber lasers, most of the reports on spatial synthesis have focused on the development of high-power fiber laser systems [28″ target=_blank>. In recent years, there have been few reports on technology.

　　In contrast, all-fiber power synthesis has been a hot topic in laser synthesis in recent years, and its typical structure is shown in Figure 1 [29″ target=_blank>. As early as 2013, IPG Photonics reported that the world’s first 100 kW high-power fiber laser system was realized based on the power synthesis of 90 kW lasers, which was successfully applied to the field of laser processing [30″ target=_blank>. Soon after, a high-power fiber laser system in the 120 kW class was reported. The key to all-fiber power synthesis is the low-insertion-loss, high-power adaptive power combiner, which IPG Photonics’ homepage envisions for a 500 kW power output [31″ target=_blank>.

　　With the improvement of traction and power combiner performance required by applications, in recent years, several units have realized 100 kW fiber laser systems based on all-fiber power synthesis. In 2021, the University of South China and Ruike Gong

　　The company reported the first 100 kW fiber laser system in China [32-33″ target=_blank>; In 2024, Kaplin, Han’s, and Chuangxin have successively reported high-power fiber laser systems ranging from 150 kW to 200 kW [29,34-36″ target=_blank>. As long as the power beam combiner has sufficient “brightness redundancy” (i.e., the product of the diameter of the output pigtail and the numerical aperture is greater than the sum of the diameter and numerical aperture of all input fibers), then there is great potential to achieve low insertion loss and high power acceptance. Of course, the product of the diameter of the output pigtail and the numerical aperture also determines the beam quality of the output laser, which determines the application scenario and application effect.

　　In addition to continuing to increase the output power, there are three trends worth paying attention to in the power synthesis of all-fiber structures. The first is the development of ultra-high power fiber laser systems of 100 kW (or more) based on all-fiber power synthesis, which not only drives technological progress in the direction of laser devices and laser technology, but also promotes the development of advanced optoelectronic measurement [37″ target=_blank>. For example, the 150 kW fiber laser system reported in Ref. [35″ target=_blank> has been criticized by researchers because the output power exceeds the range of common calorimetry-based laser power meters

　　The innovative use of optical pressure-based power measurement methods [38″ target=_blank> provides a solution for direct measurement of higher power lasers. The second is the quality (brightness) of the laser beam synthesized by power. As mentioned above, if the product of the diameter of the output pigtail and the numerical aperture is large enough, then ultra-high power output can be achieved

　　But the quality of the output laser beam will deteriorate. The author has noticed that in 2009, IPG Photonics announced a project to achieve an output power of more than 50 kW and a beam quality of M2 through multi-laser all-fiber power synthesis (e.g., phase control [25″ target=_blank>) are possible.To further improve the beam quality of the system output, for example, Ref. [40″ target=_blank> has achieved a highly stable near-single-mode 10,000-watt laser output, and the mode control based on photonic lanterns [41″ target=_blank>, which has attracted much attention in recent years, is essentially in this category.