Within this paper, The brand new lapping slurry and polishing slurry are launched. And also the deliquescence diploma of CLBO is fallen to least expensive. A brand new Doing work engineering is usually adopted. Soon after tough sharpening, the focus of ultra-precision sharpening slurry is enhanced thoroughly. So does the ultra-precision sprucing speed, along with the wiping velocity is quicker than the deliquescence speed. The CLBO crystal surface roughness can achieve 1nm and keep the area top quality nicely. Obtain by your institution
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The common energy from the NIR laser nevertheless has the probable to become enhanced to tens of watts which include 70 W [26] In case the double-pass configuration can be used for your Yb:YAG SCF amplifier stage. Hence, Should the conversion efficiency of 31% from NIR to DUV may very well be however taken care of at this better electrical power ailment, the normal output power in the DUV laser at 258 nm may be a lot more than twenty W, which might be a remarkable electricity amount for the DUV laser and bring about the unanticipated DUV laser machining success. Furthermore, for high-electric power DUV laser, the UV harm with the nonlinear crystal, including the Home windows for CLBO crystal along with the mirrors, is an additional critical parameter for long run and stable Procedure.
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Each the 1040 nm and 1078 nm laser come from a person dual-wavelength Yb-doped fiber laser. Each and every laser is amplified by stages of fiber amplifier and Yb-doped components amplifier, respectively.
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Within the scientific and industrial programs, the beam top quality on the DUV laser can be a significant parameter. Significantly, the beam high quality from the DUV laser dramatically has an effect on the laser machining benefits. The beam high quality on the DUV laser is set by that of the elemental laser plus the crystal for your frequency conversion. A short while ago, a substantial-energy DUV laser (>ten W) at 258 nm was reported by using a beam quality of M2 < 1.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would result in a far better laser machining consequence when compared to the previous DUV lasers with more substantial M2.
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What's more, combining the sound-point out laser with other nonlinear method such as stimulated Raman scattering, NIR lasers may very well be achieved at new wavelengths with large ability and large beam excellent, which was analyzed from the proof-of-principle experiment. This Raman laser scheme gives a whole new path to the significant-ability DUV laser, especially in the wavelength of 193 nm.
Tunable ultraviolet laser source according to sound-point out dye laser engineering and CsLiB6O10 harmonic technology
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