Facts About Nonlinear Crystal Revealed
Facts About Nonlinear Crystal Revealed
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Laser modeling and simulation may be used to reliably figure out the ideal crystal dimensions, doping density And perhaps values of further 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 way more than just a means to fix the laser-Lively ions at sure positions in Place. Many Homes in the host substance are crucial:
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For quasi-three-amount laser achieve media or simply 3-level achieve media, a person usually has to limit the duration to a worth that's way too limited for effective pump absorption, as reabsorption effects would in any other case spoil the efficiency. For facet pumping, extra considerations appear into Participate in; Moreover efficient pump absorption, it is vital to get an appropriate spatial condition of the gain profile.
g. a skinny disk. As One more illustration, Q-switched lasers attain a better populace density in the higher laser level and are consequently extra delicate to quenching outcomes and Vitality transfer processes; for that reason, a reduced doping density is frequently appropriate for these products. For high-ability Laser Crystal lasers, decrease doping densities are frequently utilized to limit the density of warmth technology, Even though slim-disk lasers do the job most effective with extremely doped crystals. A lot of laser solutions never reach the complete effectiveness potential because this sort of aspects haven't been adequately worked out.
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A superior harm threshold with regard to pulse fluence or peak depth is often important for top-Electrical power amplifiers.
These ions permit the crystal to amplify gentle for the laser wavelength via stimulated emission, when Vitality is equipped into the crystal through absorption of pump light (�?optical pumping
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These tables have only the most typical host crystals; several others exist, which might be much less routinely utilized.
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A number of laser crystal resources have been demonstrated where by some saturable absorber materials is incorporated for passive Q switching of the laser.
For several reasons, composite crystals are becoming well-liked. These Possess a spatially various chemical composition and will be designed with Distinctive designs.
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, just one won't have to have yet another saturable absorber crystal, in order that one might make extra compact Q-switched laser setups with lessen inside parasitic losses. Nonetheless, undesirable Unwanted effects may additionally occur, which include obtaining undesirable valence states with the concerned ions or Power transfers.
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It is apparent that different apps produce incredibly distinct demands on laser obtain media. Because of this, a wide selection of different crystals are applied, and generating the proper preference is essential for constructing lasers with optimum 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。