Laser Crystal Options
Laser Crystal Options
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These tables have only the commonest host crystals; several Some others exist, which can be a lot less usually used.
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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。
Moreover, some flexibility is misplaced in experiments if just one are unable to Check out absorbers with various thickness or doping focus, for instance, without the need of exchanging the laser crystal itself.
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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。
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。
The most possible doping concentration can rely strongly over the host material and its fabrication approach.
Laser modeling and simulation may be used to reliably figure out the the best possible crystal dimensions, doping density and possibly values of added parameters.
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。
For quasi-three-level laser obtain media or even 3-stage achieve media, one particular typically ought to Restrict the duration to a worth and that is far too small for economical pump absorption, as reabsorption outcomes would otherwise spoil the performance. For side pumping, additional concerns come into play; In addition to effective pump absorption, it is vital to obtain a suitable spatial condition of your get profile.
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For several explanations, composite crystals are becoming well-known. These have a spatially different chemical composition and will be made with Unique shapes.
It may be oriented for close to perpendicular incidence with the laser beam, or at Brewster's angle. It might be mounted in certain good mount which also acts website like a warmth sink. Much larger crystals are often useful for aspect pumping e.g. with substantial-electricity diode bars.
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。