The Fact About Laser Crystal That No One Is Suggesting

The Fact About Laser Crystal That No One Is Suggesting

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The most typical laser-active unusual earth ions and host media along with some regular emission wavelengths are demonstrated in the next table:

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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。

Moreover, some overall flexibility is dropped in experiments if just one simply cannot Check out absorbers with different thickness or doping focus, as an example, devoid of exchanging the laser crystal by 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：

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 another illustration, Q-switched lasers get to a greater populace density during the upper laser degree and so are hence much more sensitive to quenching outcomes and Electrical power transfer procedures; consequently, a reduced doping density is frequently suitable for these units. For prime-electric power lasers, decreased doping densities tend to be accustomed to limit the density of heat generation, although slender-disk lasers do the job most effective with really doped crystals. Lots of more info laser products and solutions will not reach the complete overall performance potential because these types of information haven't been thoroughly worked out.

The host crystal is considerably more than simply a method to fix the laser-active ions at specified positions in Room. Many properties on the host product are important:

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People surfaces which can be handed because of the laser beam are Typically possibly oriented at Brewster's angle or have an anti-reflection coating.

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 performance rare earth ions transition group ions 

The medium must have a substantial transparency (minimal absorption and scattering) in the wavelength areas of pump and laser radiation, and great optical homogeneity. To some extent, this depends on the caliber of the fabric, determined by facts from the fabrication course of action.

With That idea, a person isn't going to require a further saturable absorber crystal, in order that one particular may perhaps make much more compact Q-switched laser setups with reduced interior parasitic losses. Even so, unwanted Unwanted side effects can also manifest, such as acquiring unwelcome valence states from the concerned 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。