Laser Crystal - An Overview
Laser Crystal - An Overview
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激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
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作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。
g. a thin disk. As A different example, Q-switched lasers get to a higher populace density in the upper laser level and therefore are thus much more sensitive to quenching outcomes and Electricity transfer procedures; therefore, a reduce doping density is frequently suitable for these products. For top-ability lasers, lower doping densities tend to be used to limit the density of warmth technology, Even though skinny-disk lasers function very best with highly doped crystals. Many laser products never reach the full performance opportunity mainly because these kinds of particulars haven't been effectively labored out.
A number of laser crystal materials are already shown exactly where some saturable absorber substance is incorporated for passive Q switching of a laser.
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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In 2017, we developed the globe’s largest 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 large emission spectra drives the development of laser diode pumped ultrafast reliable-point out lasers. With the rise in pulse Power, peak electrical power, and repetition charge of stable-point out lasers, laser crystals will acquire towards bigger measurements, larger crystal excellent, and controllable critical general performance.
With That idea, a person does not need yet another saturable absorber crystal, to make sure that a person may perhaps make additional compact more info Q-switched laser setups with decrease inner parasitic losses. Nonetheless, unwanted Unwanted side effects may also come about, including getting unwelcome valence states on the concerned ions or energy transfers.
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。