CLBO Crystal Secrets
CLBO Crystal Secrets
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All-good-point out ultraviolet lasers are already broadly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medication for the benefits of modest quantity, very long existence, significant efficiency, superior beam excellent, extensive tuning and narrow spectral line, etcetera. Using high ability around-infrared coherent mild resource as the elemental frequency source based on nonlinear tuning technologies, generating ultraviolet coherent radiation by multistage frequency conversion is viewed as a vital method to produce the ultraviolet coherent mild resource.
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In accordance with the evidence-of-principle experiment, the conversion efficiency of 23% implied the potential of accomplishing high-energy at the second Stokes wavelength on the Raman laser. If the pump laser of 1078 nm could possibly be received at the typical electric power of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm can be more than ten W. The look on the Raman laser cavity needs to be optimized as a way to avoid the damage of the M1 and diamond area.
The average power of the NIR laser however has the likely being improved to tens of watts including 70 W [26] When the double-go configuration could possibly be used to the Yb:YAG SCF amplifier phase. Consequently, Should the conversion effectiveness of 31% from NIR to DUV may be continue to preserved at this larger electricity situation, the typical output ability of your DUV laser at 258 nm may be more than 20 W, which would become a amazing ability level for your DUV laser and bring about the unanticipated DUV laser machining benefits. Also, for prime-electric power DUV laser, the UV problems with the nonlinear crystal, including the windows for CLBO crystal plus the mirrors, is an additional critical parameter for lasting and secure Procedure.
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Furthermore, combining the stable-state laser with other nonlinear method which include stimulated Raman scattering, NIR lasers might be reached at new wavelengths with superior energy and large beam high quality, which was examined because of the evidence-of-basic principle experiment. This Raman laser plan presents a new path to the high-energy DUV laser, Specially with the wavelength of 193 nm.
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Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as significant as that of KDP. CLBO crystals is often grown within the stoichiometric soften with reduced viscosity.
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