The Definitive Guide to Laser Crystal

The Definitive Guide to 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。

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 get medium are most beneficial depend upon many aspects. The obtainable pump source (sort of laser diode or lamp) as well as the envisaged pumping arrangement are important factors, but the fabric itself also has some impact. By way of example, titanium–sapphire lasers need to be pumped with high intensities, for which the shape of a transversely cooled rod, operated with somewhat tiny pump and laser beam diameter, is a lot more appropriate than e.

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Of course, it is vitally desirable that a given crystal quality is manufactured continually, Despite the fact that distinct laser designs may have a special sensitivity to product parameters.

亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。

The host crystal is far more than simply a way to repair the laser-Energetic ions at selected positions in House. Numerous Attributes with the host product are crucial:

热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。

These surfaces that are handed with the laser beam are Ordinarily both 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 efficiency unusual earth ions changeover team ions 

The medium must have a high transparency (very low 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 material, determined by details on the fabrication process.

With That idea, just one won't will need a further saturable absorber crystal, to ensure one particular could make much more compact Q-switched laser setups with lower interior parasitic losses. On the other hand, undesirable Unwanted side effects may also come about, including getting undesirable valence states of your concerned ions or Vitality transfers.

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