Considerations To Know About Laser Crystal

Considerations To Know About Laser Crystal

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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。

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 of your attain medium are most useful rely upon various components. The readily available pump supply (variety of laser diode or lamp) as well as envisaged pumping arrangement are very important variables, but the material by itself also has some affect. As an example, titanium–sapphire lasers have to be pumped with superior intensities, for which the form of the transversely cooled rod, operated with reasonably tiny pump and laser beam diameter, is a lot more acceptable than e.

激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。

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。

探索激光晶体的领域，可以让我们看到科学和技术相结合的奇迹，为我们带来了令人难以置信的进步。这些激光晶体，每一种都在组成和特性上独具匠心，是推动现代世界众多应用的动力。

Laser modeling and simulation may be used to reliably determine the optimum crystal dimensions, doping density And perhaps values of added parameters.

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。

For quasi-a few-amount laser obtain media or even three-stage here attain media, one typically ought to Restrict the duration to a worth which is too quick for effective pump absorption, as reabsorption consequences would or else spoil the efficiency. For side pumping, extra considerations come into play; besides successful pump absorption, it is crucial to get an appropriate spatial shape with the achieve profile.

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 several good reasons, composite crystals have gotten well-known. These Possess a spatially different chemical composition and might be manufactured with Particular styles.

With That idea, just one won't will need a further saturable absorber crystal, in order that one particular may make more compact Q-switched laser setups with lessen inside parasitic losses. Having said that, undesired Unintended effects may additionally take place, such as acquiring unwanted valence states with the involved ions or Electrical power transfers.

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。