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In comparison to BBO it options bigger spectral and temperature acceptance, superior angle tolerance, along with a more compact stroll-off angle. from 3289 $ supply
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The main element problem of ultraviolet coherent mild supply generally concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the situations for frequency transformation, so the growth, dimension, harm resistance, conversion efficiency and allowable parameter range of nonlinear optical crystal are demanded more and more.
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Both of those the 1040 nm and 1078 nm laser originate from one twin-wavelength Yb-doped fiber laser. Each individual laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics in the Nd:YAG fundamental laser wavelength. In an effort to increase the damage threshold, low CLBO surface area roughness, by extremely-precision machining, is needed. Because the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, extremely-exact machining of the CLBO crystal is a difficult technological issue.
The beam profile revealed in Determine 7b demonstrated a good beam excellent as one get more info of several deserves of Raman laser, which might be advantageous to create a 193-nm DUV laser with a top quality beam.
The conversion effectiveness from essential NIR to DUV is from 5% to 36% in accordance with the documented results in Table one. Growing the conversion performance will reduce the load on the design and set up of the elemental laser amplifier in addition to the electric powered electrical power use. A good beam good quality of the basic laser may even contribute on the expanding of your conversion performance and the appropriate electrical power intensity from the NIR and eco-friendly laser from the SHG and FHG process, respectively. The best conversion efficiencies from NIR to eco-friendly and green to DUV laser by utilization of CLBO crystal are 70% and close to 50%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from basic to DUV.
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