5 Simple Techniques For Nonlinear Crystal
5 Simple Techniques For Nonlinear Crystal
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Laser modeling and simulation can be used to reliably decide the optimum crystal dimensions, doping density and possibly values of extra 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 medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions as well as the upper-state life time.
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-level laser attain media or maybe 3-level attain media, a person typically should Restrict the duration to a worth that is much too small for productive pump absorption, as reabsorption results would in any other case spoil the performance. For facet pumping, extra criteria come into Enjoy; In addition to efficient pump absorption, it's important to obtain a suitable spatial shape in the gain profile.
g. a skinny disk. As A different illustration, Q-switched lasers attain an increased inhabitants density from the upper laser stage and are hence additional sensitive to quenching consequences and Power transfer procedures; as a result, a lower doping density is usually suitable for these gadgets. For top-electric power lasers, reduced doping densities are often accustomed to Restrict the density of warmth era, Even though skinny-disk lasers get the job done best with extremely doped crystals. A lot of laser solutions never get to the full efficiency prospective mainly because these types of aspects haven't been appropriately worked out.
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Also, some adaptability is shed in experiments if a single simply cannot Check out absorbers with different thickness or doping concentration, as an example, devoid of exchanging the laser crystal alone.
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：
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These tables have only the most typical host crystals; several Other folks exist, which might be a lot less commonly employed.
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Some laser crystal products have been shown where by some saturable absorber product is included for passive Q switching of the laser.
For a variety of motives, composite crystals have become well-known. These Possess a spatially different chemical composition and might be manufactured with Particular shapes.
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, 1 won't need an extra saturable absorber crystal, to make sure that one could make more compact Q-switched laser setups with decreased inside parasitic losses. Having said that, unwelcome Unwanted Laser Crystal side effects can also happen, like obtaining unwelcome valence states with the included ions or Power transfers.
GWU delivers all prevalent laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) by using a broad number of specifications. Other than the properly-proven supplies, revolutionary crystals with superb Houses like Yb:CALGO can open new horizons for demanding laser programs. No matter no matter if individual items for R & D uses are needed or Expense-efficient numbers in small, medium or massive batches with in-time supply for the manufacturing line are essential: GWU’s committed assistance really helps to locate the best Main factors for your software.
It is obvious that various purposes bring on really various prerequisites on laser achieve media. For that reason, a broad vary of different crystals are made use of, and generating the proper preference is essential for setting up 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。