The Basic Principles Of Laser Crystal
The Basic Principles Of Laser Crystal
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The most typical laser-active unusual earth ions and host media together with some normal emission wavelengths are proven in the following desk:
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。
Furthermore, some overall flexibility is shed in experiments if 1 can not Check out absorbers with unique thickness or doping focus, such as, without exchanging the laser crystal itself.
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：
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A higher surface area excellent is certainly essential. Specs of floor flatness in many cases are much better than . This will help to stay away from each scattering losses and wavefront distortions which might degrade the laser's beam excellent. On top of that, scratch and dig technical specs
g. a thin disk. As A further instance, Q-switched lasers access a higher populace density within the upper laser stage and they are consequently far more delicate to quenching results and Electricity transfer processes; for that reason, a lessen doping density is commonly suitable for these devices. For high-energy lasers, reduce doping densities tend to be used to limit the density of heat generation, Even though thin-disk lasers function greatest with extremely doped crystals. Several laser items never get to the total efficiency possible because these specifics have not been thoroughly worked out.
The host crystal is far more than just a method to repair the laser-Energetic ions at certain positions in Room. Many properties on the host product are crucial:
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。
It is apparent that various programs produce incredibly distinctive requirements on laser achieve media. For that reason, a wide range of different crystals are utilized, and producing the ideal decision is important for setting up lasers with optimum functionality.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal development optical functionality exceptional earth ions changeover team ions
The medium must have a higher transparency (very low absorption and scattering) while in the wavelength regions of pump and laser radiation, and good optical homogeneity. To some extent, this is determined by more info the quality of the material, based on particulars with the fabrication system.
It might be oriented for in close proximity to perpendicular incidence with the laser beam, or at Brewster's angle. It might be preset in certain stable mount which also functions being a heat sink. Larger sized crystals are often used for facet pumping e.g. with high-power 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。