Laser Crystal Options
Laser Crystal Options
Blog Article
The most typical laser-active unusual earth ions and host media together with some standard emission wavelengths are revealed 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。
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The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and also the upper-point out lifetime.
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 skinny disk. As Yet another case in point, Q-switched lasers attain an increased inhabitants density while in the higher laser level and therefore are hence extra sensitive to quenching effects and Electrical power transfer processes; consequently, a lower doping density is commonly suitable for these products. For top-energy lasers, lessen doping densities are often utilized to limit the density of heat generation, While skinny-disk lasers work best with extremely doped crystals. A lot of laser products don't reach the complete overall performance likely for the reason that this sort of particulars haven't been properly worked out.
A handful of laser crystal supplies are shown where some saturable absorber materials is integrated for passive Q switching of the laser.
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。
It is apparent that distinct programs cause incredibly distinctive requirements on laser gain media. here For this reason, a wide vary of various crystals are utilised, and making the correct option is important for setting up lasers with ideal overall performance.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 resources laser crystal crystal advancement optical overall performance unusual earth ions changeover team ions
The medium must have a high transparency (small absorption and scattering) while in the wavelength regions of pump and laser radiation, and fantastic optical homogeneity. To some extent, this is dependent upon the quality of the material, based on specifics of your fabrication approach.
It may be oriented for around perpendicular incidence on the laser beam, or at Brewster's angle. It might be fastened in certain stable mount which also acts as a heat sink. Larger crystals are usually useful for facet 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。