Facts About Laser Crystal Revealed
Facts About Laser Crystal Revealed
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On top of that, some adaptability is misplaced in experiments if a single cannot Check out absorbers with various thickness or doping focus, by way of example, without having exchanging the laser crystal itself.
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:
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 thin disk. As another case in point, Q-switched lasers achieve a greater inhabitants density during the upper laser amount and they are thus more sensitive to quenching consequences and Electrical power transfer procedures; therefore, a lower doping density is often appropriate for these devices. For top-power lasers, lower doping densities are often utilized to Restrict the density of heat era, Though skinny-disk lasers function very best with highly doped crystals. Many laser products and solutions never get to the total overall performance prospective mainly because these information have not been adequately labored out.
Laser modeling and simulation may be used to click here reliably establish the optimum crystal Proportions, doping density And perhaps values of extra 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 acquire media or simply 3-level get media, one particular normally must limit the length to a value which can be far too small for economical pump absorption, as reabsorption consequences would otherwise spoil the overall performance. For side pumping, further issues arrive into Engage in; Aside from productive pump absorption, it is necessary to get an appropriate spatial shape of the attain profile.
Distinctive crystalline resources are incredibly different relating to their hardness as well as other Attributes, which decide with which methods And just how easily they are often cut and polished with high quality.
The medium must have a significant transparency (very low absorption and scattering) during the wavelength regions of pump and laser radiation, and good optical homogeneity. To some extent, this depends upon the quality of the material, determined by details from the fabrication procedure.
It may be oriented for close to perpendicular incidence on the laser beam, or at Brewster's angle. It could be preset in some good mount which also functions to be a warmth sink. Larger crystals are often utilized for side pumping e.g. with large-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。