A Review Of Laser Crystal
A Review Of Laser Crystal
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The most common laser-Lively scarce earth ions and host media along with some regular emission wavelengths are demonstrated in the following desk:
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激光晶体是固态激光器的核心。它们是光放大发生的媒介，产生激光束。在这篇全面指南中，我们深入探讨激光晶体的世界。
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。
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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。
Not surprisingly, it's very fascinating that a provided crystal top quality is created consistently, Whilst various laser layouts may have a special sensitivity to product parameters.
g. a skinny disk. As An additional illustration, Q-switched lasers arrive at a greater populace density in the upper laser degree and they are as a result additional delicate to quenching consequences and Power transfer processes; therefore, a lower doping density is often appropriate for these gadgets. For high-electrical power lasers, decrease doping densities in many cases are utilized to Restrict the density of heat era, Though skinny-disk lasers get the job done finest with remarkably doped crystals. A lot of laser merchandise tend not to reach the comprehensive effectiveness probable since this sort of information have not been appropriately worked out.
The host crystal more info is a lot more than just a means to fix the laser-Lively ions at selected positions in Room. Numerous Homes in the host product are very important:
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
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主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。
In 2017, we formulated the entire world’s major Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with exceptionally broad emission spectra drives the development of laser diode pumped ultrafast stable-state lasers. With the increase in pulse Strength, peak ability, and repetition price of sound-condition lasers, laser crystals will acquire to bigger sizes, larger crystal good quality, and controllable essential general performance.
With That idea, one isn't going to need to have a further saturable absorber crystal, to ensure one particular could make a lot more compact Q-switched laser setups with reduce interior parasitic losses. Having said that, undesired Uncomfortable side effects may additionally happen, which include acquiring unwelcome valence states on the involved ions or Electricity transfers.
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