Laser Crystal - An Overview
Laser Crystal - An Overview
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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。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions as well as the upper-state life time.
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 skinny disk. As An additional illustration, Q-switched lasers get to a higher population density while in the higher laser amount and they are thus a lot more delicate to quenching outcomes and Electrical power transfer procedures; as a result, a lessen doping density is often suitable for these gadgets. For top-energy lasers, decrease doping densities in many cases are used to Restrict the density of heat generation, Though slim-disk lasers get the job done ideal with very doped crystals. Numerous laser items will not get to the entire overall performance possible since these types of information haven't been properly labored out.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
For quasi-3-stage laser obtain media or maybe a few-amount achieve media, a person typically ought to limit the duration to a worth which can be as well brief for economical pump absorption, as reabsorption effects would otherwise spoil the general performance. For facet pumping, further issues appear into Enjoy; Apart from economical pump absorption, it is vital to acquire a suitable spatial shape from the gain profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 supplies laser crystal crystal advancement optical efficiency rare earth ions changeover team ions
In 2017, we created the whole world’s greatest Ti∶sapphire crystal (Φ235 mm), which supported The ten PW laser output of Shanghai Superintense Ultrafast Laser Facility. The event of Yb and Tm doped GdScO3 laser crystals with very extensive emission spectra drives the event of laser diode pumped ultrafast solid-state lasers. With the increase in pulse energy, peak electricity, and repetition level of solid-state lasers, laser crystals will build in direction of much larger dimensions, bigger crystal quality, and controllable key efficiency.
It could be oriented for in the vicinity of perpendicular incidence of the laser beam, or at Brewster's get more info angle. It can be fastened in certain solid mount which also functions to be a warmth sink. Larger sized crystals tend to be useful for aspect pumping e.g. with substantial-electricity diode bars.
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。