About Laser Crystal
About Laser Crystal
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Laser crystals are optical crystals �?generally solitary crystals (monocrystalline optical materials) �?that are utilised as get media for strong-condition lasers. In most cases, They are really doped with either trivalent exceptional earth ions or changeover metallic ions.
In addition, some versatility is missing in experiments if just one can't Check out absorbers with distinctive thickness or doping concentration, as an example, devoid of exchanging the laser crystal alone.
Which geometry, dopant and doping concentration from the attain medium are most useful depend on a number of aspects. The offered pump source (type of laser diode or lamp) as well as the envisaged pumping arrangement are essential elements, but the fabric by itself also has some influence. Such as, titanium–sapphire lasers should be pumped with large intensities, for which the shape of the transversely cooled rod, operated with comparatively small pump and laser beam diameter, is a lot more proper than e.
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。
A large floor quality is read more naturally significant. Specifications of surface flatness are frequently a lot better than . This can help to stay away from each scattering losses and wavefront distortions which might degrade the laser's beam good quality. Also, scratch and dig requirements
g. a skinny disk. As another illustration, Q-switched lasers attain an increased population density from the higher laser level and therefore are thus more sensitive to quenching results and Strength transfer procedures; hence, a reduced doping density is frequently suitable for these products. For top-power lasers, reduce doping densities are frequently used to limit the density of warmth technology, Whilst slender-disk lasers get the job done finest with remarkably doped crystals. Quite a few laser merchandise tend not to reach the entire general performance opportunity for the reason that this kind of particulars haven't been thoroughly worked out.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。
For quasi-three-stage laser achieve media or perhaps a few-degree gain media, just one usually needs to limit the duration to a price which is much too limited for effective pump absorption, as reabsorption consequences would in any other case spoil the overall performance. For aspect pumping, additional criteria occur into play; Aside from economical pump absorption, it is vital to get an appropriate spatial form of your gain profile.
Distinct crystalline supplies are quite distinct concerning their hardness and various properties, which establish with which methods And just how conveniently they can be Minimize and polished with top quality.
GWU-Lasertechnik has a lot more than thirty yrs of experience in distributing laser crystals. Select GWU to take advantage of our extensive expertise and in-area expertise!
With That idea, one particular won't will need a further saturable absorber crystal, making sure that a person may make more compact Q-switched laser setups with reduced internal parasitic losses. However, unwelcome side effects may take place, such as getting unwanted valence states with the concerned ions or Electrical power transfers.
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。