The Nonlinear Crystal Diaries
The Nonlinear Crystal Diaries
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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.
The medium ought to have a large transparency (small absorption and scattering) inside the wavelength areas of pump and laser radiation, and superior optical homogeneity. To some extent, this is determined by the standard of the fabric, determined by information of your fabrication procedure.
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and also the upper-condition lifetime.
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-degree laser get media or even 3-degree gain media, one particular typically ought to Restrict the length to a value which can be much too quick for successful pump absorption, as reabsorption consequences would in any other case spoil the functionality. For aspect pumping, further considerations arrive into play; In addition to efficient pump absorption, it is important to acquire an acceptable spatial condition on the gain profile.
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Also, some overall flexibility is dropped in experiments if a single can't try out absorbers with different thickness or doping focus, such as, without the need of 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
These tables have only the most typical host crystals; several Other individuals exist, that happen to be considerably less regularly employed.
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People surfaces that are handed through the laser beam are Ordinarily both oriented at Brewster's angle or have an anti-reflection coating.
For various motives, composite crystals are becoming well-known. These Have got a spatially varying chemical composition and might be made with Specific 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 concept, a single isn't going to will need yet another saturable absorber crystal, to make sure that one might make much more compact Q-switched laser setups with reduce internal parasitic losses. Nevertheless, unwanted Negative effects can also take place, including obtaining unwelcome valence states of your included ions or Strength transfers.
GWU features all popular laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) by using a broad variety of requirements. Aside from the effectively-established elements, modern crystals with exceptional properties like Yb:CALGO can open up new horizons for demanding laser applications. It doesn't matter irrespective of whether specific pieces for R & D uses are necessary or cost-productive numbers in modest, medium or big batches with in-time supply for your generation line are necessary: GWU’s focused services really helps to find the ideal Main elements in your application.
It is obvious that unique purposes result in really unique requirements on laser acquire media. For that reason, a wide array of various crystals are used, and creating the correct decision is important for developing lasers with the best possible 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。