Details, Fiction and Laser Crystal

Details, Fiction and Laser Crystal

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The most typical laser-Lively rare earth ions and host media together with some typical emission wavelengths are revealed in the next table:

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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In addition, some flexibility is dropped in experiments if just one cannot Check out absorbers with various thickness or doping concentration, for instance, with no exchanging the laser crystal by itself.

Which geometry, dopant and doping focus with the get medium are most beneficial rely upon many variables. The offered pump supply (kind of laser diode or lamp) and also the envisaged pumping arrangement are important things, but the fabric by itself also has some impact. Such as, titanium–sapphire lasers need to be pumped with high intensities, for which the form of a transversely cooled rod, operated with rather smaller pump and laser beam diameter, is much more appropriate than e.

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Needless to say, it is extremely attractive that a presented crystal high quality is manufactured persistently, Even though different laser designs might have a special sensitivity to substance parameters.

g. a skinny disk. As Yet another illustration, Q-switched lasers access a higher population density inside the upper laser degree and read more therefore are thus much more sensitive to quenching results and Vitality transfer processes; as a result, a decrease doping density is usually appropriate for these gadgets. For high-energy lasers, lower doping densities tend to be utilized to Restrict the density of heat technology, Whilst slim-disk lasers perform very best with hugely doped crystals. Several laser goods never reach the full general performance likely simply because these types of specifics haven't been correctly labored out.

A number of laser crystal products have already been shown where some saturable absorber materials is integrated for passive Q switching of the laser.

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。

All those surfaces that are handed because of the laser beam are Typically possibly 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。

For various good reasons, composite crystals have gotten well-liked. These Have got a spatially various chemical composition and can be designed with Particular styles.

It could be oriented for in close proximity to perpendicular incidence from the laser beam, or at Brewster's angle. It might be mounted in certain solid mount which also acts as a warmth sink. Larger crystals are generally useful for aspect pumping e.g. with higher-electricity diode bars.

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。