Nonlinear Crystal for Dummies
Nonlinear Crystal for Dummies
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Laser modeling and simulation can be used to reliably establish the optimum crystal Proportions, doping density and possibly values of supplemental parameters.
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。
The host crystal is far more than just a means to fix the laser-Energetic ions at specified positions in Place. Many Homes on the host substance are crucial:
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-a few-stage laser obtain media or maybe a few-level gain media, just one typically ought to Restrict the size to a worth which can be much too brief for effective pump absorption, as reabsorption effects would otherwise spoil the efficiency. For side pumping, added criteria come into Perform; besides effective pump absorption, it is vital to get a suitable spatial condition in the get profile.
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A high harm threshold with regards to pulse fluence or peak depth can be critical for high-Power 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
It could be oriented for close to perpendicular incidence with the laser beam, or at Brewster's angle. It may be fastened in some sound mount which also functions as a heat sink. Much larger crystals are often utilized for side pumping e.g. with large-electric power diode bars.
The most typical laser-Lively rare earth ions and host media along with some regular emission wavelengths are demonstrated in the next table:
A handful of laser crystal components are shown where some saturable absorber materials is incorporated for passive Q switching of a laser.
For a variety of good reasons, composite crystals are getting to be preferred. These have a spatially different chemical composition and will be built 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 would not want yet here another saturable absorber crystal, to ensure that just one may make far more compact Q-switched laser setups with lessen interior parasitic losses. Nonetheless, undesired Unwanted side effects can also arise, for instance getting undesired valence states with the associated ions or Electrical power transfers.
GWU presents all prevalent laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) by using a broad selection of specifications. Besides the perfectly-recognized resources, progressive crystals with outstanding Houses like Yb:CALGO can open new horizons for demanding laser apps. It doesn't matter no matter if personal parts for R & D reasons are required or Value-efficient figures in smaller, medium or big batches with in-time shipping with the manufacturing line are essential: GWU’s focused service helps to discover the finest Main factors for your application.
It is clear that unique apps bring about extremely different prerequisites on laser get media. For that reason, a wide assortment of various crystals are utilised, and creating the correct choice is important for constructing lasers with ideal overall performance.
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。