A Secret Weapon For CLBO Crystal
A Secret Weapon For CLBO Crystal
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Nevertheless, in order to procedure the crystal is very State-of-the-art manufacturing approaches are essential. Since the dawn of the crystal, engaged on this problem, we are now the one corporation in the world that could be processed With this crystal.
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We summarized The present advancement status with the superior-electrical power DUV laser each for the wavelength of FHG in the one-μm laser and at 193 nm. The current enhancement in the good-state/fiber laser, in addition to the nonlinear optical crystals, prompts not just the normal energy and also the beam excellent (coherence) of the DUV lasers to an unprecedented amount.
The common electricity with the NIR laser nevertheless has the possible for being improved to tens of watts including 70 W [26] In case the double-go configuration could be used with the Yb:YAG SCF amplifier phase. That's why, If your conversion efficiency of 31% from NIR to DUV could be nonetheless maintained at this greater ability issue, the normal output electricity with the DUV laser at 258 nm could be over 20 W, which might be considered a exceptional power level for your DUV laser and cause the unanticipated DUV laser machining success. Furthermore, for high-electric power DUV laser, the UV injury with the nonlinear crystal, such as the Home windows for CLBO crystal as well as the mirrors, is another essential parameter for long term and secure operation.
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While in the scientific and industrial apps, the beam excellent with the DUV laser is likewise a very important parameter. Significantly, the beam high-quality with the DUV laser considerably influences the laser machining final results. The beam quality on the DUV laser is set by that of the fundamental laser as well as the crystal for that frequency conversion. Lately, a substantial-electricity DUV laser (>ten W) at 258 nm was reported by using a beam quality of M2 < 1.five, which was created by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would cause a better laser machining final result in comparison with the previous DUV lasers with greater M2.
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Moreover, combining the reliable-state laser with other nonlinear course of action like stimulated Raman scattering, NIR lasers may very well be accomplished at new wavelengths with substantial power and large beam excellent, which was tested because of the proof-of-theory experiment. This Raman laser scheme presents a new path to the substantial-energy DUV laser, Specifically within the wavelength of 193 nm.
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Its UV absorption edge reaches one hundred eighty nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as big as that of KDP. CLBO crystals is usually grown with the stoichiometric melt with reduced viscosity.
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