What Does Laser Crystal Mean?
What Does Laser Crystal Mean?
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Laser modeling and simulation can be used to reliably ascertain the optimum crystal Proportions, doping density and possibly values of supplemental parameters.
The medium ought to have a substantial transparency (minimal absorption and scattering) inside the wavelength locations of pump and laser radiation, and good optical homogeneity. To some extent, this is determined by the caliber of the fabric, based on details in the fabrication approach.
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions in addition to the higher-state 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。
The most achievable doping focus can depend strongly to the host material and its fabrication system.
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GWU-Lasertechnik has greater than thirty yrs of knowledge in distributing laser crystals. Pick GWU to reap the benefits of our wide know-how and in-field encounter!
A significant harm threshold concerning pulse fluence or peak intensity is often essential for top-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：
Which geometry, dopant and doping concentration of your acquire medium are most beneficial count on a number of variables. The out there pump source (sort of laser diode or lamp) plus the envisaged pumping arrangement are important elements, but the material by itself also has some affect. Such as, titanium–sapphire lasers have to be pumped with large intensities, for which the form of a transversely cooled rod, operated with reasonably compact pump and laser beam diameter, is a lot more appropriate than e.
It might be oriented for in the vicinity of perpendicular incidence of the laser beam, or at Brewster's angle. It could be set in certain stable mount which also acts to be a heat sink. Greater crystals are often useful for aspect pumping e.g. with higher-electrical power diode bars.
The commonest laser-Energetic unusual earth ions and host media together with some typical emission wavelengths are revealed in the next table:
A couple of laser crystal elements have already been shown where some saturable absorber substance is included for passive Q switching of a laser.
For several reasons, composite crystals have become preferred. These Possess a spatially various chemical composition and will be produced with Specific styles.
There may be a variety of crystalline media, that may be grouped in accordance to big atomic constituents and crystalline buildings. Some important groups of crystals are:
With that concept, one particular won't will need a further saturable absorber crystal, making sure that a person may perhaps make extra compact Q-switched laser setups with lessen interior parasitic losses. Having said that, undesired Unintended effects could also come about, for instance getting unwelcome valence states of your included ions or Strength transfers.
GWU features all popular laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and so on.) which has a get more info wide number of specifications. Moreover the properly-set up products, impressive crystals with exceptional properties like Yb:CALGO can open up new horizons for demanding laser applications. It doesn't matter no matter whether person parts for R & D reasons are demanded or Value-efficient figures in compact, medium or massive batches with in-time supply to the output line are necessary: GWU’s focused services helps you to locate the greatest Main components to your software.
It is clear that different applications bring about incredibly distinctive specifications on laser obtain media. For that reason, a wide array of various crystals are made use of, and making the proper selection is essential for setting up lasers with ideal functionality.
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。