The best Side of CLBO Crystal
The best Side of CLBO Crystal
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On this paper, the new lapping slurry and sprucing slurry are launched. As well as the deliquescence degree of CLBO is fallen to least expensive. A different Performing technologies can be adopted. Soon after tough polishing, the concentration of ultra-precision sprucing slurry is amplified adequately. So does the extremely-precision sharpening pace, as well as wiping velocity is faster than the deliquescence pace. The CLBO crystal floor roughness can attain 1nm and keep the surface area excellent properly. Obtain as a result of your establishment
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We summarized The existing improvement standing of your high-electrical power DUV laser equally for the wavelength of FHG on the one-μm laser and at 193 nm. The new growth from the solid-point out/fiber laser, plus the nonlinear optical crystals, prompts don't just the typical electric power but also the beam good quality (coherence) with the DUV lasers to an unparalleled amount.
The key difficulty of ultraviolet coherent light-weight supply generally focuses on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is without doubt one of the circumstances for frequency transformation, so the growth, dimensions, hurt resistance, conversion performance and allowable parameter variety of nonlinear optical crystal are essential more and more.
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Equally 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 materials amplifier, respectively.
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During the scientific and industrial apps, the beam high quality of your DUV laser can be an essential parameter. Significantly, the beam top quality of your DUV laser dramatically impacts the laser machining benefits. The beam high-quality in the DUV laser is decided by that of the elemental laser and the crystal for your frequency conversion. Just lately, a high-energy DUV laser (>10 W) at 258 nm was reported having a beam high quality of M2 < one.five, which was produced by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on an improved laser machining outcome compared to the previous DUV lasers with larger M2.
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The beam profile revealed in Figure 7b shown an excellent beam high quality as on the list of merits of Raman laser, which might be advantageous to produce a 193-nm DUV laser with a high quality beam.
The conversion effectiveness from essential NIR to DUV is from five% to 36% in accordance with the described ends in Table 1. Raising the conversion efficiency will decrease the load on the look and setup of the elemental laser amplifier along with the electrical power usage. A good beam high quality of the fundamental laser will likely lead towards the expanding in the conversion efficiency as well as the appropriate electric power intensity from the check here NIR and inexperienced laser during the SHG and FHG course of action, respectively. The best conversion efficiencies from NIR to green and green to DUV laser by utilization of CLBO crystal are 70% and close to fifty%, respectively [12], which corresponds into the conversion effectiveness of 35% from fundamental to DUV.
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