Laser Crystal No Further a Mystery
Laser Crystal No Further a Mystery
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The most common laser-active unusual earth ions and host media along with some regular emission wavelengths are demonstrated in the following desk:
These ions allow the crystal to amplify light-weight on the laser wavelength by using stimulated emission, when Vitality is provided towards the crystal by means of absorption of pump light (�?optical pumping
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。
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。
活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
g. a thin disk. As A different instance, Q-switched lasers achieve a higher populace density from the higher laser level and therefore are thus more sensitive to quenching results and Vitality transfer procedures; hence, a lower doping density is usually appropriate for these products. For prime-electric power lasers, lessen doping densities are often used to Restrict the density of heat generation, Though skinny-disk lasers operate ideal with hugely doped crystals. Many laser items usually do not reach the comprehensive performance potential because these types of facts have not been thoroughly worked 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。
蓝宝�?柱面�?球罩 偏振�?棱镜 红外光学元件 反射�?光学窗口 非球面镜 波片 分光�?制造能力
For quasi-three-amount laser achieve media and even a few-stage achieve media, a single frequently has to Restrict the size to a worth that's too small for efficient pump absorption, as reabsorption results would if not spoil the functionality. For facet pumping, extra issues appear into Participate in; In addition to productive pump absorption, it is vital to obtain a suitable spatial shape on the obtain profile.
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。
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It could be oriented for near perpendicular incidence from the laser beam, click here or at Brewster's angle. It may be preset in some strong mount which also acts to be a warmth sink. Much larger crystals usually are employed for side pumping e.g. with substantial-electricity diode bars.
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