Detailed Notes on Laser Crystal

Detailed Notes on Laser Crystal

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These tables include only the most common host crystals; lots of Many others exist, which happen to be fewer commonly made use of.

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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。

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The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions in addition to the upper-point out life span.

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A high surface good quality is certainly essential. Specs of surface area flatness in many cases are much better than . This helps to prevent both equally scattering losses and wavefront distortions that may degrade the laser's beam quality. In addition, scratch and dig specifications

g. a thin disk. As A further instance, Q-switched lasers access a greater populace density during the upper laser degree and so are hence additional delicate to quenching effects and Vitality transfer procedures; thus, a read more lower doping density is usually appropriate for these units. For prime-electricity lasers, decreased doping densities will often be utilized to Restrict the density of warmth era, Despite the fact that skinny-disk lasers perform very best with very doped crystals. Numerous laser goods don't get to the whole effectiveness probable due to the fact this sort of particulars haven't been effectively labored out.

The host crystal is a lot more than simply a means to fix the laser-Energetic ions at selected positions in space. Several Houses of your host material are important:

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。

Individuals surfaces which are handed by the laser beam are Commonly possibly oriented at Brewster's angle or have an anti-reflection coating.

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For many explanations, composite crystals have gotten common. These Use a spatially various chemical composition and may be made with Distinctive designs.

With That idea, just one would not have to have yet another saturable absorber crystal, to make sure that a person may well make additional compact Q-switched laser setups with decrease inner parasitic losses. Nevertheless, unwelcome side effects may come about, for example obtaining undesired valence states from the included ions or Power transfers.

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。