Nonlinear Crystal Secrets
Nonlinear Crystal Secrets
Blog Article
Laser modeling and simulation can be used to reliably figure out the optimum crystal Proportions, doping density and possibly 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 medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and in addition the upper-state life span.
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For quasi-3-degree laser gain media or even a few-degree acquire media, 1 normally ought to limit the length to a worth that's as well shorter for successful pump absorption, as reabsorption results would otherwise spoil the overall performance. For facet pumping, further concerns appear into Perform; besides productive pump absorption, it's important to acquire a suitable spatial condition in the attain profile.
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A substantial destruction threshold with regards to pulse fluence or peak depth may be critical for top-Electrical 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 on the obtain medium are most advantageous rely upon numerous factors. The readily available pump resource (style of laser diode or lamp) as well as envisaged pumping arrangement are very important components, but the fabric alone also has some affect. One example is, titanium–sapphire lasers need to be pumped with large intensities, for which the form of the transversely cooled rod, operated with somewhat modest pump and laser beam diameter, is much more proper than e.
These tables contain only the most common host crystals; numerous Other people exist, which are fewer commonly used.
The commonest laser-active rare here earth ions and host media together with some typical emission wavelengths are proven in the next desk:
A number of laser crystal products are actually shown wherever some saturable absorber substance is included for passive Q switching of a laser.
For several good reasons, composite crystals have gotten well known. These Use a spatially varying chemical composition and will be built with Particular 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 idea, one particular does not need an additional saturable absorber crystal, to make sure that a single may perhaps make extra compact Q-switched laser setups with decreased internal parasitic losses. Even so, unwanted Uncomfortable side effects may also arise, including acquiring undesired valence states in the involved ions or Vitality transfers.
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Laser crystals are optical crystals �?generally single crystals (monocrystalline optical resources) �?that are made use of as obtain media for solid-condition lasers. Typically, They're doped with possibly trivalent rare earth ions or changeover metal 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。