CLBO Crystal Fundamentals Explained
CLBO Crystal Fundamentals Explained
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We summarized The present progress position on the large-electrical power DUV laser both of those with the wavelength of FHG in the one-μm laser and at 193 nm. The current enhancement in the good-point out/fiber laser, together with the nonlinear optical crystals, prompts not just the normal energy and also the beam high quality (coherence) with the DUV lasers to an unprecedented degree.
The standard electric power on the NIR laser even now has the possible to be improved to tens of watts such as 70 W [26] if the double-go configuration may be used for your Yb:YAG SCF amplifier stage. As a result, If your conversion effectiveness of 31% from NIR to DUV could be even now preserved at this higher electricity situation, the normal output ability of the DUV laser at 258 nm may be much more than twenty W, which would be considered a impressive energy stage with the DUV laser and result in the unanticipated DUV laser machining final results. In addition, for prime-ability DUV laser, the UV damage in the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is another crucial parameter for long-term and stable Procedure.
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The two the 1040 nm and 1078 nm laser come from a single dual-wavelength Yb-doped fiber laser. Every laser is amplified by stages of fiber amplifier and Yb-doped supplies amplifier, respectively.
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Inside the scientific and industrial applications, the beam high quality of the DUV laser can be a vital parameter. Notably, the beam high-quality on the DUV laser substantially affects the laser machining results. The beam high-quality on the DUV laser is determined by that of the elemental laser as well as the crystal for the frequency conversion. Just lately, a higher-ability DUV laser (>10 W) at 258 nm was described using a beam here top quality of M2 < 1.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring about a better laser machining end result in comparison with the past DUV lasers with greater M2.
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Tunable ultraviolet laser supply based on reliable-point out dye laser technological know-how and CsLiB6O10 harmonic era
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 significant as that of KDP. CLBO crystals may be grown within the stoichiometric melt with reduced viscosity.
The development with the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser electrical power properly, a fresh concept on the 193-nm DUV laser technology is offered based on the diamond Raman laser.