Within this paper, the new lapping slurry and sprucing slurry are released. As well as the deliquescence diploma of CLBO is fallen to lowest. A whole new Doing the job engineering can also be adopted. Immediately after tough sprucing, the focus of extremely-precision polishing slurry is enhanced adequately. So does the extremely-precision sharpening speed, and also the wiping pace is faster compared to deliquescence speed. The CLBO crystal surface roughness can achieve 1nm and maintain the surface high-quality perfectly. Accessibility via your institution
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The typical power of your NIR laser nevertheless has the prospective for being improved to tens of watts like 70 W [26] When the double-pass configuration may very well be used with the Yb:YAG SCF amplifier stage. Therefore, If your conversion efficiency of 31% from NIR to DUV could possibly be even now maintained at this better power condition, the standard output electrical power with the DUV laser at 258 nm could be over twenty W, which might certainly be a impressive ability amount for the DUV laser and result in the unanticipated DUV laser machining final results. Additionally, for prime-electricity DUV laser, the UV problems of your nonlinear crystal, such as the Home windows for CLBO crystal and the mirrors, is another crucial parameter for long lasting and stable Procedure.
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Equally the 1040 nm and 1078 nm laser originate from one twin-wavelength Yb-doped fiber laser. Just about every laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
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During the scientific and industrial purposes, the beam excellent from the DUV laser is additionally a crucial parameter. Especially, the beam top quality with the DUV laser dramatically influences the laser machining results. The beam high-quality of the DUV laser is determined by that of the fundamental laser and the crystal for your frequency conversion. Just lately, a large-electrical power DUV laser (>ten W) at 258 nm was claimed that has a beam excellent of M2 < 1.5, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would result in a better laser machining consequence in comparison to the earlier DUV lasers with greater M2.
The heart beat duration of the 2nd Stokes gentle was shortened to 5 ns as shown in Determine 7a, a single-shot image in the oscilloscope, and that is a standard phenomenon in Raman laser [44] although the heart beat duration of the pump laser was ten ns.
What's more, combining the solid-state laser with other nonlinear process such as stimulated Raman scattering, NIR lasers could be attained at new wavelengths with substantial electricity and significant beam high quality, which was analyzed from the evidence-of-basic principle experiment. This Raman laser plan gives a brand new path to the superior-electrical power DUV laser, Particularly with the wavelength of 193 nm.
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Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as massive as that of KDP. CLBO crystals is usually grown from the stoichiometric soften with reduced viscosity.
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