CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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In this particular paper, The brand new lapping slurry and polishing slurry are launched. Plus the deliquescence diploma of CLBO is fallen to lowest. A fresh Functioning technologies is likewise adopted. After rough polishing, the focus of extremely-precision sprucing slurry is amplified thoroughly. So does the extremely-precision sharpening pace, along with the wiping pace is faster compared to deliquescence speed. The CLBO crystal surface roughness can reach 1nm and continue to keep the floor high-quality nicely. Obtain by way of your institution
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We summarized the current enhancement standing on the large-power DUV laser both equally within the wavelength of FHG on the one-μm laser and at 193 nm. The modern development of your sound-point out/fiber laser, plus the nonlinear optical crystals, prompts not just the normal power but in addition the beam top quality (coherence) with the DUV lasers to an unparalleled level.
The normal electric power on the NIR laser nevertheless has the possible to be improved to tens of watts which include 70 W [26] In case the double-pass configuration could be utilized for your Yb:YAG SCF amplifier stage. Hence, If your conversion efficiency of 31% from NIR to DUV can be even now preserved at this higher electricity condition, the common output electricity with the DUV laser at 258 nm could possibly be much more than 20 W, which would become a amazing ability level for your DUV laser and bring about the unanticipated DUV laser machining benefits. What's more, for top-ability DUV laser, the UV damage of the nonlinear crystal, such as the Home windows for CLBO crystal plus the mirrors, is yet another significant parameter for lasting and steady operation.
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The two the 1040 nm and 1078 nm laser come from one twin-wavelength Yb-doped fiber laser. Just about every laser is amplified by phases of fiber amplifier and Yb-doped components amplifier, respectively.
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During the scientific and industrial apps, the beam good quality from the DUV laser is also an important parameter. Specially, the beam top quality of the DUV laser considerably affects the laser machining success. The beam top quality of your DUV laser is set by that of the elemental laser and also the crystal for that frequency conversion. Lately, a substantial-power DUV laser (>10 W) at 258 nm was claimed having a beam good quality of M2 < one.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would lead to a far better laser machining outcome as compared to the earlier DUV lasers with greater M2.
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Also, combining the solid-state laser with other nonlinear approach for instance stimulated Raman scattering, NIR lasers can be achieved at new wavelengths with higher electrical power and higher beam top quality, which was tested through the proof-of-basic principle experiment. This Raman laser plan delivers a different route to the large-energy DUV laser, Particularly at the wavelength of 193 nm.
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Its UV absorption edge reaches one hundred eighty nm. The efficient nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as massive as that of KDP. CLBO crystals may be developed from the stoichiometric melt with lessen viscosity.
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