Not known Details About Laser Crystal
Not known Details About Laser Crystal
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The most typical laser-active rare earth ions and host media together with some normal emission wavelengths are demonstrated in the subsequent table:
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。
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 versatility is lost in experiments if a single can not Check out absorbers with diverse thickness or doping concentration, for instance, without the need of exchanging the laser crystal alone.
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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。
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
Laser modeling and simulation can be utilized to reliably establish the optimum crystal dimensions, doping density and possibly values of added parameters.
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For quasi-3-stage laser obtain media or maybe a few-amount obtain media, 1 typically really should Restrict the length to a value which can be way too small for economical pump absorption, as reabsorption consequences would or else spoil the performance. For side pumping, further things to consider occur into play; Apart from productive pump absorption, it's important to acquire a suitable spatial form in the gain profile.
Different crystalline elements are extremely unique concerning their hardness and also other Attributes, which decide with which procedures and how simply they may be Slice and polished with top quality.
The medium must have a large here transparency (reduced absorption and scattering) in the wavelength regions of pump and laser radiation, and great optical homogeneity. To some extent, this will depend on the quality of the fabric, based on specifics in the fabrication approach.
It could be oriented for close to perpendicular incidence from the laser beam, or at Brewster's angle. It can be fastened in a few solid mount which also acts like a heat sink. Bigger crystals are frequently used for aspect pumping e.g. with higher-electricity diode bars.
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