The Definitive Guide to Laser Crystal

The Definitive Guide to 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。

Furthermore, some adaptability is shed in experiments if 1 simply cannot Check out absorbers with distinctive thickness or doping concentration, by way of example, without exchanging the laser crystal by itself.

Which geometry, dopant and doping focus from the achieve medium are most advantageous depend on quite a few variables. The readily available pump supply (sort of laser diode or lamp) and also the envisaged pumping arrangement are very important aspects, but the material by itself also has some affect. One example is, titanium–sapphire lasers should be pumped with large intensities, for which the shape of the transversely cooled rod, operated with fairly smaller pump and laser beam diameter, is much more ideal 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。

激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。

g. a skinny disk. As A further example, Q-switched lasers attain a greater populace density from the higher laser amount and they are hence more sensitive to quenching consequences and energy transfer processes; therefore, a lower doping density is usually suitable for these devices. For top-ability lasers, lessen doping densities are frequently accustomed to limit the density of warmth technology, although slender-disk lasers do the job most effective with really doped crystals. Quite a few laser solutions will not reach the complete overall performance potential mainly because these information have not been properly labored out.

激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。

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。

It is obvious that distinct programs result in extremely various requirements on laser gain media. For this reason, a wide array of different crystals are employed, and creating the proper preference is important for setting up lasers with optimum performance.

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。

The medium should have a large transparency (lower absorption and scattering) from the wavelength locations of pump and laser radiation, and superior optical homogeneity. To some extent, this click here depends upon the standard of the material, determined by specifics in the fabrication approach.

You can find a wide range of crystalline media, which can be grouped according to special atomic constituents and crystalline constructions. Some significant teams of crystals are:

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