Laser Crystal - An Overview
Laser Crystal - An Overview
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The most common laser-active scarce earth ions and host media along with some regular emission wavelengths are demonstrated in the subsequent 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。
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。
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：
GWU delivers all frequent laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG etcetera.) using a wide a number of requirements. Apart from the properly-established elements, progressive crystals with outstanding Houses like Yb:CALGO can open up new horizons for demanding laser applications. It does not matter whether particular person items for R & D uses are needed or Value-economical quantities in smaller, medium or substantial batches with in-time shipping with the output line are needed: GWU’s dedicated service helps you to discover the ideal core components for your personal application.
Not surprisingly, it's very desirable that a supplied crystal top quality is manufactured constantly, Whilst diverse laser designs can have a distinct sensitivity to product parameters.
The most possible doping focus can depend strongly around the host materials and its fabrication approach.
Laser modeling and simulation can be used to reliably identify the ideal crystal Proportions, doping density and possibly values click here of additional parameters.
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Distinct crystalline elements are extremely distinctive about their hardness and also other properties, which decide with which strategies And exactly how easily they are often Lower and polished with good quality.
For numerous explanations, composite crystals have gotten well known. These Have got a spatially varying chemical composition and will be created with Unique styles.
It may be oriented for near perpendicular incidence of your laser beam, or at Brewster's angle. It may be set in a few reliable mount which also acts for a heat sink. Larger crystals are usually employed for facet pumping e.g. with higher-power diode bars.
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。