Getting My Laser Crystal To Work
Getting My Laser Crystal To Work
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Laser modeling and simulation can be utilized to reliably identify the optimum crystal dimensions, doping density And maybe values of additional 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 a lot more than just a method to repair the laser-active ions at selected positions in Place. Quite a few Houses in the host product are essential:
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For quasi-three-degree laser get media and even three-amount attain media, 1 typically needs to Restrict the size to a worth and that is also short for successful pump absorption, as reabsorption consequences would otherwise spoil the functionality. For facet pumping, further factors arrive into Perform; Moreover efficient pump absorption, it is vital to acquire an acceptable spatial shape of the acquire profile.
g. a skinny disk. As A different illustration, Q-switched lasers attain an increased inhabitants density while in the higher laser amount and so are hence far more sensitive to quenching results and Strength transfer processes; as a result, a decrease doping density is commonly suitable for these equipment. For high-ability lasers, decreased doping densities are frequently accustomed to limit the density of heat technology, although slender-disk lasers perform finest with hugely doped crystals. Quite a few laser goods never reach the entire general performance likely because these details haven't been effectively worked out.
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A high harm threshold regarding pulse fluence or peak intensity might be critical for prime-Strength 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 focus from the obtain medium are most advantageous count on various components. The readily available pump supply (kind of laser diode or lamp) as well as envisaged pumping arrangement are very important aspects, but the more info material alone also has some affect. For example, titanium–sapphire lasers must be pumped with high intensities, for which the form of the transversely cooled rod, operated with comparatively smaller pump and laser beam diameter, is a lot more acceptable than e.
These tables include only the most typical host crystals; quite a few Other folks exist, which can be less commonly employed.
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All those surfaces that are passed because of the laser beam are Generally both oriented at Brewster's angle or have an anti-reflection coating.
For a variety of motives, composite crystals have gotten common. These Possess a spatially various chemical composition and can be built with Exclusive 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, a single would not want a further saturable absorber crystal, so that a person may perhaps make a lot more compact Q-switched laser setups with lower inner parasitic losses. Nevertheless, unwanted Unwanted effects may additionally arise, such as obtaining undesirable valence states in the concerned ions or Vitality transfers.
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Laser crystals are optical crystals �?commonly single crystals (monocrystalline optical components) �?which are employed as get media for strong-point out lasers. Typically, They may be doped with either trivalent rare earth ions or changeover metallic 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。