Detailed Notes on Laser Crystal

Detailed Notes on Laser Crystal

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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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Which geometry, dopant and doping focus in the acquire medium are most beneficial rely on various things. The obtainable pump resource (kind of laser diode or lamp) and the envisaged pumping arrangement are very important variables, but the material itself also has some impact. By way of example, titanium–sapphire lasers must be pumped with higher intensities, for which the shape of a transversely cooled rod, operated with rather smaller pump and laser beam diameter, is much more suitable than e.

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A large floor high quality is naturally vital. Specifications of surface flatness are frequently a lot better than . This aids to stop both equally scattering losses and wavefront distortions that may degrade the laser's beam quality. In addition, scratch and dig specifications

The most probable doping concentration can rely strongly about the host substance and its fabrication process.

激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。

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。

These surfaces which are handed through the laser beam are Usually both oriented at Brewster's angle or have an anti-reflection coating.

主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。

The medium should have a significant transparency (lower absorption and scattering) within the wavelength click here locations of pump and laser radiation, and very good optical homogeneity. To some extent, this depends upon the standard of the material, based on details with the fabrication procedure.

With that concept, one does not need an additional saturable absorber crystal, to make sure that one particular may possibly make a lot more compact Q-switched laser setups with reduce internal parasitic losses. However, unwelcome Unintended effects may take place, such as acquiring unwanted valence states with the concerned ions or Electrical 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。