Laser Crystal Secrets
Laser Crystal Secrets
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Visible solid-point out lasers based on laser crystals are compact and light-weight. Lasers from deep pink to blue have been claimed. Specially, there were many reviews on Pr3+ doped laser crystals, and continual wave lasers all around 490 nm are already accomplished. Ti∶sapphire is the most crucial obtain crystal for ultrafast lasers. Superintense ultrafast lasers with peak electricity ranging from various hundred terawatts to 10 petawatts demand significant-high quality and large-sized Ti∶sapphire crystal. The origin of defect associated optical absorption in Ti∶sapphire and the growth of enormous-sized higher-good quality crystals are two significant issues that urgently need to be resolved. Recently, we analyzed the system of defect similar optical absorption in Ti∶sapphire theoretically, and grew large-sized higher-high quality crystals by means of heat Trade process. The primary activating ions for 1 μm laser crystals are Nd3+ and Yb3+. Nd∶YAG will be the most generally made use of laser crystal. Lately, we explored many new Nd3+ doped fluoride and oxide laser crystals, and solved the emission cross area issue of Nd∶Lu3Al5O12. SIOM reported a completely new style of laser crystal Yb∶GdScO3, of which the achieve bandwidth is about 85 nm. The normally employed activation ions for two μm laser crystals are Tm3+ and Ho3+. Tm3+ is often right pumped by laser diode. Ho3+ has bigger stimulated emission cross section, and its emission wavelength is for a longer time than two μm. We researched The expansion, spectroscopy, and laser efficiency of Tm∶LiYF4, Tm∶LiLuF4, Ho∶LiYF4, Tm,Ho∶LiYF4, and Tm,Ho∶LiLuF4 crystals.
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激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and in addition the upper-point out life time.
激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。
A large surface top quality is certainly essential. Specs of surface area flatness in many cases are much better than . This helps to prevent the two scattering losses and wavefront distortions which could degrade the laser's beam good quality. Also, scratch and dig specs
g. a skinny disk. As another illustration, Q-switched lasers arrive at a higher population density from the higher laser level and they are consequently far more delicate to quenching consequences and Power transfer processes; for that reason, a decreased doping density is commonly suitable for these devices. For high-energy lasers, reduced doping densities are sometimes accustomed to Restrict the density of warmth era, Despite the fact that skinny-disk lasers do the job most effective with really doped crystals. Lots of laser products and solutions never get to the total efficiency prospective simply because such aspects have not been properly labored out.
Some laser crystal components have been demonstrated wherever some saturable absorber materials is integrated for passive Q switching of the laser.
激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。
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GWU-Lasertechnik has over 30 several years of working experience in distributing laser crystals. Choose GWU to take advantage of our vast expertise and in-area expertise!
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人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。