20w high power uv laser has excellent performance and has gradually become a new favorite in the market

Ultraviolet lasers are lasers with a wavelength of 355 nm. Due to its short wavelength and narrow pulse characteristics, it can produce a very small focused spot and keep the heat-affected zone to a minimum. It can not only provide extremely fine processing effect, but also maintain good positioning accuracy, which is the advantage of UV laser.

At present, in view of the continuous improvement of laser processing efficiency and requirements for industrial applications, nanosecond ultraviolet lasers with a power of more than 10W have become the new favorite in the market. Therefore, medium and high power nanosecond ultraviolet lasers with high power, narrow pulse width and high repetition frequency are developed by various companies. mainstream direction.

Ultraviolet lasers work by directly breaking the chemical bonds that connect the atomic components of a substance. This process of separating substances into atoms is a "cold" process that does not generate heat to the periphery. On the other hand, most materials absorb UV light efficiently, allowing them to be used to process materials that cannot be processed by infrared and visible lasers. High-power UV lasers are mainly used in the high-end market of fine processing, including flexible circuit board (FPCB), printed circuit board (PCB) drilling/cutting, ceramic material drilling and dicing, glass/sapphire cutting, LED substrate crystal Circular scribing, special glass cutting, laser precision marking and other fields.

5G communication brings opportunities for laser applications

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All major countries in the world are looking for the most advanced science and technology as a new economic growth point. China has formed its own competitiveness in the independent development of science and technology, and can compete with Europe, the United States and Japan on the same stage. 2019 is the first year of 5G pre-commercialization in China, and it is obvious that 5G has become a hot industry today. The folding screens launched by many manufacturers in February have attracted wide attention, but they are still not widely used. Our country and various industries are also looking forward to 5G to bring a new generation of communication experience and bring new vitality to the consumer electronics industry, especially the huge demand for product replacement on the mobile phone side. Under its construction, the digital economy covering online and offline, consumption and production, platform and ecology will gain greater driving force.

At present, China has more than 1 billion mobile phone users, and has already entered the era of smart phones. Recalling that the fastest development stage of smart phones in China should be from 2010 to 2015, many people forget the rapid development during this period. There is a rapid transition of communication signals from 2G to 3G, as well as the contribution of 4G. During this period, represented by smartphones, products including PC tablets, mobile wearables and other products brought real heavy demand for laser precision processing. A group of laser precision equipment companies received good orders. demand has increased.

Ultrashort pulse ultraviolet laser or trend

Lasers can be divided into infrared light, green light, ultraviolet light and blue light according to the spectrum. According to the pulse time, it can be divided into microseconds, nanoseconds, picoseconds and femtoseconds. Ultraviolet light is obtained by doubling the frequency of infrared light, which is much more expensive and difficult. At present, various domestic manufacturers have basically mature technologies in nanosecond UV lasers, and they have completely localized products in the range of 2-20 watts, and many performances such as power stability control are also relatively reliable. In the past two years, due to the market competition of ultraviolet lasers, the price has dropped, which makes more people realize the advantages of ultraviolet laser processing. Like infrared lasers, ultraviolet lasers are used as heat sources for precision machining. There are two aspects of future development: one is higher power, and the other is the development of ultra-short pulses.

In order to adapt to the improvement of industrial processing precision requirements, our company independently developed a 355nm end-pumped Q-switched laser. This product is small in size, compact in structure, light in power and low in power consumption. According to the use environment, this series of products adopts the form of water cooling. This excellent resonator design achieves high power stability, stable pulse sequence, and can adjust and control the laser power and repetition frequency output at any time, fully meeting the requirements of industrial precision machining.