New Step by Step Map For CLBO Crystal
New Step by Step Map For CLBO Crystal
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In this particular paper, the new lapping slurry and sharpening slurry are introduced. As well as the deliquescence diploma of CLBO is fallen to least expensive. A whole new Performing know-how is likewise adopted. Soon after tough sharpening, the focus of ultra-precision sprucing slurry is increased thoroughly. So does the extremely-precision sprucing pace, as well as the wiping velocity is faster than the deliquescence pace. The CLBO crystal area roughness can obtain 1nm and retain the surface excellent well. Access as a result of your institution
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By way of example, The present concave OC could get replaced by a plane mirror which could mitigate the power density over the floor of M1 plus the diamond. Additionally, making use of higher problems threshold coatings for M1 and diamond would also improve the output ability with no damages. Then, the NIR laser at the 2nd Stokes wavelength may be high adequate, in addition to its fantastic beam high quality, to create the ultimate DUV laser at 193 nm which has a higher regular ability.
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Each the 1040 nm and 1078 nm laser come from 1 dual-wavelength Yb-doped fiber laser. Each laser is amplified by phases of fiber amplifier and Yb-doped resources amplifier, respectively.
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In the scientific and industrial applications, the beam high quality on the DUV laser is likewise a significant parameter. Specially, the beam good quality in the DUV laser significantly has an effect on the laser machining effects. The beam good quality from the DUV laser is decided by that of the basic laser and the crystal for that frequency conversion. Not long ago, a substantial-energy DUV laser (>ten W) at 258 nm was reported that has a beam high-quality of M2 < 1.5, which was produced by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would cause a better laser machining outcome compared to the earlier DUV lasers with much larger M2.
The pulse length of the second Stokes gentle was shortened to 5 ns as demonstrated in Figure 7a, one-shot picture with the oscilloscope, which can be a standard phenomenon in Raman laser [44] whilst the pulse period with the pump laser was ten ns.
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The conversion efficiency from elementary NIR to DUV is from five% to 36% based on the described results in Table one. Expanding the conversion efficiency will decrease the load on the design and setup of the basic laser amplifier as well as the electric electric power use. A good beam top quality of the basic laser can even add towards the escalating from the conversion effectiveness together with the right electric power depth on the NIR and inexperienced laser while in the SHG and FHG approach, respectively. The highest conversion efficiencies from NIR to green and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all around 50%, respectively [twelve], which corresponds on the conversion effectiveness of 35% from fundamental to DUV.
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