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DPSS laser is the diode pump solid state laser, excitation source for the semiconductor laser diode (module), laser module stimulated medium for special optical crystal solid materials, general for the rare earth doped crystals or other metal ions of YAG, YVO4 and GGG, is infrared wavelength range, generally is a common single wavelength. Solid-state lasers pumped by semiconductor lasers use LD or LD array as pump source and solid laser material as gain medium. This kind of laser core component has no liquid (such as dye, water, etc.) or gas (such as some inert gas), often called all-solid-state laser.
All-solid-state lasers have the advantages of small size, light weight, high efficiency, stable performance, good reliability, long life, high beam quality, and huge market demand. All-solid-state laser technology is one of the few high-tech fields in the world where China has an overall advantage from material source to laser system integration and has a good foundation for accelerating development in some fields.
The latest development of all-solid-state semiconductor lasers, narrow-pulse width, short-wavelength UV diode pumped solid-state lasers has promoted the development of industrial production systems. In the past, DPSS lasers were more suitable for scientific research than for industrial production. With the development of DPSS lasers, many possible applications have been opened up, including infrared, pulsed continuous wave and Q switch to generate pulsed light waves with multiple pulse widths. Compared with other kinds of lasers, DPSS lasers have greater flexibility in regulating pulse shape, repetition rate and beam quality, and the harmonics generated by DPSS lasers allow users to obtain shorter beams suitable for processing a variety of materials.
advances in technology and processing capability and its improvement in robustness and reliability. However, almost all lamp-pumped solid-state lasers have problems of changing the repetition rate and heating the crystal material, which indicates that the beam quality is changing dynamically. Newer solid-state lasers are pumped with a monochromatic beam of a laser diode, which emits less heat into the laser rod and gives the user a better focused beam. These new lasers have high reliability and a service life of more than 7500~10000h. It is particularly important that these lasers have very high reliability compared to excimer lasers. Excimer laser requires a lot of maintenance services, such as cleaning the optical system and replacing the gas after every 100 hours of operation.
When purchasing an industrial-grade DPSS laser, thoroughly test it to make sure the laser meets your expectations. The laser must be housed in a rugged enclosure for industrial use, which is easy to integrate, has long service life, is easy to maintain and has high machining accuracy, and does not require lamp replacement, crystal cleaning, optical system and window parts replacement, or gas replacement.
