The Definitive Guide to Nonlinear Crystal

The Definitive Guide to Nonlinear Crystal

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Laser modeling and simulation may be used to reliably decide the the best possible crystal Proportions, doping density And maybe 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 much more than just a method to fix the laser-Energetic ions at certain positions in space. Quite a few properties on the host material are very important:

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-three-level laser acquire media or perhaps 3-level obtain media, 1 usually ought to Restrict the length to a worth which is also brief for efficient pump absorption, as reabsorption consequences would usually spoil the functionality. For side pumping, more issues come into Engage in; Other than effective pump absorption, it is crucial to acquire a suitable spatial form of the get profile.

g. a thin disk. As An additional case in point, Q-switched lasers arrive at an increased populace density inside the upper laser level and are hence a lot more delicate to quenching effects and energy transfer procedures; therefore, a lessen doping density is frequently suitable for these devices. For prime-ability lasers, reduce doping densities in many cases are used to Restrict the density of warmth era, Whilst slender-disk lasers get the job done ideal with highly doped crystals. Several laser goods don't reach the complete overall performance possible because these kinds of details have not been adequately labored out.

蓝宝�?柱面�?球罩 偏振�?棱镜 红外光学元件 反射�?光学窗口 非球面镜 波片 分光镜

Furthermore, some adaptability is missing in experiments if one particular can not Check out absorbers with diverse thickness or doping concentration, for instance, with out 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：

晶体生长 晶体加工 镀膜能�?品质管理 研发能力 新闻中心

It may be oriented for in close proximity to perpendicular incidence of your laser beam, or at Brewster's angle. It might be set in a few stable mount which also functions as being a heat sink. Larger crystals are often utilized for side pumping e.g. with higher-electricity diode bars.

The most typical laser-Lively uncommon earth ions and host media along with some usual emission wavelengths are revealed in the subsequent table:

A few laser crystal resources are actually demonstrated exactly where some saturable absorber content is click here integrated for passive Q switching of the laser.

Needless to say, it is rather attractive that a specified crystal quality is manufactured continuously, While distinct laser types may have a distinct sensitivity to material parameters.

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 concept, one particular does not want yet another saturable absorber crystal, to ensure one may possibly make extra compact Q-switched laser setups with lower inner parasitic losses. However, undesired Negative effects may additionally come about, such as obtaining undesired valence states in the involved ions or energy transfers.

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Laser crystals are optical crystals �?typically single crystals (monocrystalline optical supplies) �?which might be used as obtain media for good-point out lasers. Typically, They can be doped with either trivalent rare earth ions or changeover steel 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。