The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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The main element trouble of ultraviolet coherent gentle source largely focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the disorders for frequency transformation, so The expansion, sizing, destruction resistance, conversion performance and allowable parameter choice of nonlinear optical crystal are expected A lot more.
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Both the 1040 nm and 1078 nm laser come from one twin-wavelength Yb-doped fiber laser. Each laser is amplified by phases of fiber amplifier and Yb-doped supplies amplifier, respectively.
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In the scientific and industrial purposes, the beam quality of your DUV laser is usually a very important parameter. Significantly, the beam excellent on the DUV laser dramatically influences the laser machining final results. The beam high quality of your DUV laser is determined by that of the basic laser as well as the crystal for the frequency conversion. A short while ago, a substantial-energy DUV laser (>ten W) at 258 nm was reported that has a beam high-quality of M2 < 1.5, which was created by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would lead to a better laser machining final result in comparison with the previous DUV lasers with larger sized M2.
The heartbeat duration of the next Stokes mild was shortened to five ns as demonstrated in Determine 7a, just one-shot picture from your oscilloscope, that is a typical phenomenon in Raman laser [forty four] although the heart beat duration on the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most more info effective non-linear crystal which generates ultraviolet harmonics in the Nd:YAG basic laser wavelength. In an effort to increase the hurt threshold, minimal CLBO surface area roughness, by ultra-precision machining, is necessary. As the CLBO crystal has uncomplicated hydroscopic response and micro scratches in machining, ultra-precise machining of the CLBO crystal is often a tricky specialized problem.
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Its UV absorption edge reaches a hundred and eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals might be grown with the stoichiometric melt with decreased viscosity.
The event of the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser electricity correctly, a fresh strategy of your 193-nm DUV laser generation is presented determined by the diamond Raman laser.