Laser Crystal - An Overview
Laser Crystal - An Overview
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Laser modeling and simulation can be used to reliably decide the optimum crystal dimensions, doping density And maybe values of extra parameters.
The medium must have a high transparency (low absorption and scattering) in the wavelength locations of pump and laser radiation, and excellent optical homogeneity. To some extent, this is dependent upon the caliber of the material, determined by particulars of the fabrication process.
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and also the higher-condition life span.
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。
For quasi-3-degree laser acquire media or even a few-stage acquire media, one normally ought to limit the duration to a price which can be too small for productive pump absorption, as reabsorption effects would usually spoil the functionality. For side pumping, supplemental things to consider come into Enjoy; Apart from effective pump absorption, it can be crucial to obtain an appropriate spatial condition in the attain profile.
g. a thin disk. As One more example, Q-switched lasers achieve the next population density from the upper laser degree and so are therefore far more delicate to quenching effects and Strength transfer procedures; as a result, a reduce doping density is frequently suitable for these equipment. For high-energy lasers, decrease doping densities in many cases are utilized to limit the density of heat generation, Though slim-disk lasers get the job done most effective with highly doped crystals. Numerous laser solutions usually do not reach the total effectiveness probable for the reason that these types of details haven't been thoroughly labored out.
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A large destruction threshold in terms of pulse fluence or peak intensity might be important for prime-energy amplifiers.
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：
晶体生长 晶体加工 镀膜能�?品质管理 研发能力 新闻中心
These tables include only the most common host crystals; lots of Other folks exist, that happen to be considerably less regularly utilized.
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A couple of laser crystal components are shown wherever some saturable absorber product is included for passive Q switching of the laser.
For numerous factors, composite crystals are becoming popular. These Possess a spatially varying chemical composition and might be created with Distinctive styles.
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。
With That idea, a single will not have to have an extra saturable absorber crystal, making sure that 1 might make extra compact Q-switched laser setups with decreased interior parasitic losses. On the other check here hand, unwanted Unwanted effects might also come about, like acquiring undesired valence states of your concerned ions or Power transfers.
GWU delivers all common laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) by using a wide assortment of technical specs. Apart from the perfectly-founded products, progressive crystals with remarkable Houses like Yb:CALGO can open up new horizons for demanding laser applications. Despite whether or not personal items for R & D reasons are required or Charge-effective numbers in compact, medium or significant batches with in-time supply for that generation line are desired: GWU’s committed assistance really helps to locate the finest Main components for the software.
Laser crystals are optical crystals �?commonly solitary crystals (monocrystalline optical supplies) �?which happen to be applied as attain media for sound-point out lasers. Typically, These are doped with either trivalent rare earth ions or changeover metallic ions.
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。