The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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In accordance with the proof-of-principle experiment, the conversion effectiveness of 23% implied the possibility of reaching substantial-ability at the second Stokes wavelength from the Raman laser. If the pump laser of 1078 nm can be obtained at the average electrical power of fifty W, the output ability of its 2nd Stokes wavelength at 1512 nm may be in excess of ten W. The design on the Raman laser cavity needs to be optimized in order to avoid the destruction with the M1 and diamond floor.
The crucial element challenge of ultraviolet coherent light source mainly concentrates on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is probably the problems for frequency transformation, so the growth, measurement, harm resistance, conversion performance and allowable parameter selection of nonlinear optical crystal are essential A lot more.
Then again, the beam quality of this better electrical power DUV laser would come to be worse resulting from a lot more major thermal and nonlinear effects. That's why, the frequency conversion processes must be diligently designed to mitigate the aforementioned effects. Hence, a substantial-electric power DUV laser within the FHG of one μm with a very good beam high quality could possibly be acquired and will be beneficial for getting the shorter wavelength DUV lasers which include 193 nm by SFG.
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Inside the scientific and industrial purposes, the beam high quality with the DUV laser is additionally a very important parameter. Particularly, the beam top quality on the DUV laser considerably has an effect on the laser machining final results. The beam excellent of your DUV laser is decided by that of the basic laser along with the crystal for that frequency conversion. Not long ago, a substantial-electricity DUV laser (>10 W) at 258 nm was claimed which has a beam high-quality of M2 < one.5, which was produced by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring about a greater laser machining result compared to the past DUV lasers with greater M2.
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What's more, combining the good-condition laser with other nonlinear procedure for instance stimulated Raman scattering, NIR lasers might be attained at new wavelengths with high ability and large beam quality, which was tested with the proof-of-principle experiment. This Raman laser scheme presents a brand new route to the substantial-power DUV laser, In particular within the wavelength of 193 nm.
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The event of your 193-nm laser was shown by phases of SFG. As a way to scale the DUV laser electrical power successfully, a new strategy in the 193-nm CLBO Crystal DUV laser technology is presented based on the diamond Raman laser.