Deep-ultraviolet All-solid-state Laser (DUV-DPL) Is Difficult To Develop, China Is The World's Only Producer

Deep ultraviolet all-solid-state lasers are characterized by narrow line width, high photon energy, high photon flow density, high beam quality, good directionality, high reliability, small size, etc., and they can output low-frequency to high-frequency, nanosecond, picosecond and femtosecond lasers.
Deep-ultraviolet all-solid-state laser, also known as deep-ultraviolet all-solid-state laser light source, abbreviated as DUV-DPL, is a device that utilizes semiconductor lasers (laser diodes) to pump deep-ultraviolet nonlinear optical crystals to emit deep-ultraviolet lasers. China is in the leading position in the global deep-ultraviolet all-solid-state laser market.
All-solid-state laser (DPL), is the core device are solid, no liquid, gas laser, that is, the pumping source, the laser medium are solid state, its semiconductor lasers and traditional solid-state lasers advantages into one, is a new type of high-power, high-efficiency, high-reliability, long-life lasers, the application field is constantly broadening. All-solid-state lasers can output visible and invisible light such as red, green, blue and ultraviolet light.
Deep ultraviolet (DUV) light, which is light with a wavelength of less than 200 nm, is invisible light, and its research significance lies in the fact that it is difficult to characterize more than half of the materials that have been discovered so far, but these materials can absorb deep ultraviolet light, based on which the material properties can be studied. Deep-ultraviolet all-solid-state lasers can emit deep-ultraviolet light by utilizing nonlinear optical crystals for wavelength conversion.
The report shows that deep-ultraviolet all-solid-state lasers are characterized by narrow line width, high photon energy, high photon flow density, high beam quality, good directionality, high reliability, small size, etc., and can output low heavy frequency to high heavy frequency, nanosecond, picosecond and femtosecond lasers, which have a Huge development potential.
Entering the 21st century, China's all-solid-state laser intellectual property system is complete, the industrial chain layout is perfect, and the competitiveness in the global market continues to increase. Deep-ultraviolet all-solid-state lasers use semiconductor lasers (laser diodes) as the pump source and nonlinear optical crystals as the laser medium. Due to the difficulty of research and development, there has been a lack of deep-ultraviolet nonlinear optical crystals in the world, which restricts the technological development of deep-ultraviolet all-solid-state lasers.
In the early 1990s, China took the lead in discovering a deep-ultraviolet nonlinear optical crystal, namely KBBF crystal, and in 2015, China developed LSBO crystal, which is still the only producer in the world. Our ability to develop nonlinear optical crystals is leading in the global market. On this basis, China has developed deep-ultraviolet all-solid-state lasers. Deep-ultraviolet nonlinear optical crystals are difficult to process, frequency conversion technology, China is still the world's only country capable of mass production of deep-ultraviolet all-solid-state lasers.
With the deep-ultraviolet all-solid-state laser as the light source, China has manufactured Raman spectrometers, electron spectrometers, electron microscopes, photochemical reactors and other precision instruments, which play an important role in promoting the research of new materials, semiconductors, catalysts and other research, as well as technological advances in electronic information, communications, biology, medicine, physics, chemistry and other technologies. The Chinese Academy of Sciences is the representative deep ultraviolet all-solid-state laser research organization in China.