Laser Crystal Can Be Fun For Anyone

Laser Crystal Can Be Fun For Anyone

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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。

激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。

Which geometry, dopant and doping focus with the attain medium are most beneficial depend upon numerous aspects. The obtainable pump source (form of laser diode or lamp) plus the envisaged pumping arrangement are very important aspects, but the material by itself also has some influence. For example, titanium–sapphire lasers ought to be pumped with substantial intensities, for which the form of a transversely cooled rod, operated with rather little pump and laser beam diameter, is a lot more proper than e.

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Needless to say, it is rather appealing that a offered crystal high quality is produced consistently, Whilst unique laser layouts may have a special sensitivity to content parameters.

g. a thin disk. As A different example, Q-switched lasers access a higher populace density during the upper laser degree and therefore are hence much more delicate to quenching results and Strength transfer processes; for that reason, a lessen doping density is often appropriate for these gadgets. For high-electrical power lasers, decrease doping densities in many cases are utilized to Restrict the density of heat generation, Though thin-disk lasers work ideal with hugely doped crystals. A lot of laser goods don't get to the whole effectiveness likely due to the fact this sort of details haven't been correctly labored out.

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。

For quasi-3-degree laser gain media or simply 3-level get media, one particular frequently really should limit the duration to a value and that is also shorter for productive pump absorption, as reabsorption consequences would in any other case spoil the performance. For side pumping, more factors occur into Perform; Aside from economical pump absorption, it is vital to obtain an appropriate spatial click here form with the attain profile.

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。

For several good reasons, composite crystals have gotten common. These Have a very spatially varying chemical composition and will be designed with Specific styles.

With That idea, a person would not need yet another saturable absorber crystal, so that a person may well make far more compact Q-switched laser setups with reduced internal parasitic losses. However, unwelcome Unintended effects may take place, including getting undesirable valence states of the associated ions or Vitality 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。