5 Easy Facts About Laser Crystal Described
5 Easy Facts About Laser Crystal Described
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Laser modeling and simulation may be used to reliably establish the ideal crystal dimensions, doping density And perhaps 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 crystal is a great deal more than just a way to repair the laser-active ions at selected positions in space. Numerous Attributes in the host product are essential:
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The utmost doable doping concentration can depend strongly about the host substance and its fabrication process.
g. a thin disk. As One more illustration, Q-switched lasers achieve a greater inhabitants density from the higher laser level and are hence additional sensitive to quenching results and Strength transfer processes; hence, a decrease doping density is frequently appropriate for these devices. For top-power lasers, reduce doping densities tend to be accustomed to Restrict the density of heat era, Whilst slim-disk lasers perform greatest with extremely doped crystals. Many laser products and solutions never reach the full general performance probable simply because such information haven't been effectively worked out.
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In addition, some flexibility is lost in experiments if a person are not able to Check out absorbers with distinct thickness or doping concentration, as an example, without exchanging the laser crystal by itself.
These ions allow the crystal to amplify gentle at the laser wavelength through stimulated emission, when Power is provided to your crystal via absorption of pump light-weight (�?optical pumping
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These tables incorporate only the most common host crystals; quite a few Other folks exist, that are fewer usually made use of.
The most typical laser-Energetic rare earth ions and host media together with some standard emission wavelengths are revealed in the following table:
A couple of laser crystal materials have been demonstrated exactly where some saturable absorber product is integrated for passive Q switching of a laser.
Obviously, it is extremely attractive that a presented crystal high-quality is made continuously, Even though diverse laser layouts might have a special sensitivity to content parameters.
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, 1 doesn't want an extra saturable absorber crystal, in order that 1 could make much more compact Q-switched laser setups with lower interior parasitic losses. Having said that, undesired side effects may additionally arise, which include acquiring unwelcome read more valence states with the concerned ions or energy transfers.
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It is clear that distinct apps produce really distinctive demands on laser attain media. For that reason, a wide range of different crystals are applied, and making the best preference is essential for constructing lasers with ideal general 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。