Not known Details About Laser Crystal
Not known Details About Laser Crystal
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The commonest laser-Lively rare earth ions and host media along with some standard emission wavelengths are shown in the next desk:
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
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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。
A large area high quality is naturally vital. Specifications of surface area flatness in many cases are much better than . This aids to stay away from the two scattering losses and wavefront distortions which often can degrade the laser's beam excellent. On top of that, scratch and dig technical specs
g. a thin disk. As A further instance, Q-switched lasers access a higher populace density from the higher laser level and they are consequently more delicate to quenching effects and Strength transfer processes; for that reason, a lessen doping density is often appropriate for these products. For top-power lasers, lower doping densities are frequently used to limit the density of warmth technology, While slim-disk lasers operate best with remarkably doped crystals. Quite a few here laser merchandise do not get to the entire effectiveness likely since such aspects have not been properly worked out.
The host crystal is far more than simply a method to repair the laser-active ions at specified positions in Place. A number of Qualities on the host substance are crucial:
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Individuals surfaces that are handed through the laser beam are normally 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 elements laser crystal crystal development optical general performance exceptional earth ions changeover team ions
The medium ought to have a high transparency (lower absorption and scattering) in the wavelength areas of pump and laser radiation, and very good optical homogeneity. To some extent, this depends upon the quality of the material, determined by aspects in the fabrication system.
With That idea, one particular isn't going to need to have an extra saturable absorber crystal, in order that 1 may well make additional compact Q-switched laser setups with decrease internal parasitic losses. However, undesired Uncomfortable side effects may additionally take place, such as acquiring unwanted valence states on the involved ions or Electricity transfers.
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