The smart Trick of CLBO Crystal That No One is Discussing
The smart Trick of CLBO Crystal That No One is Discussing
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With this paper, The brand new lapping slurry and sprucing slurry are introduced. And the deliquescence degree of CLBO is fallen to cheapest. A brand new Performing technologies is additionally adopted. Immediately after tough sharpening, the focus of ultra-precision polishing slurry is improved thoroughly. So does the extremely-precision sprucing pace, along with the wiping pace is faster compared to deliquescence speed. The CLBO crystal area roughness can achieve 1nm and continue to keep the area excellent very well. Accessibility via your establishment
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We summarized the current growth position from the significant-power DUV laser the two for the wavelength of FHG of your one-μm laser and at 193 nm. The new enhancement of your good-point out/fiber laser, along with the nonlinear optical crystals, prompts don't just the standard power but also the beam quality (coherence) of the DUV lasers to an unprecedented degree.
As an example, the current concave OC could get replaced by a plane mirror which could mitigate the facility density to the area of M1 plus the diamond. Additionally, making use of high problems threshold coatings for M1 and diamond would also improve the output electrical power with none damages. Then, the NIR laser with the 2nd Stokes wavelength could be substantial enough, together with its very good beam quality, to create the ultimate DUV laser at 193 nm with a significant typical energy.
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Within the scientific and industrial purposes, the beam excellent on the DUV laser can also be an important parameter. Especially, the beam quality on the DUV laser significantly has an effect on the laser machining final results. The beam quality on the DUV laser is decided by that of the fundamental laser plus the crystal for your frequency conversion. Lately, a substantial-power DUV laser (>10 W) at 258 nm was documented that has a beam quality of M2 < 1.5, which was generated by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would result in a far better laser machining final result in comparison to the earlier DUV lasers with more substantial M2.
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Tunable ultraviolet laser resource depending on reliable-point out dye laser technological innovation and CsLiB6O10 harmonic era
The conversion efficiency from elementary NIR to DUV is from five% to 36% in accordance with the described brings about Table one. Expanding the conversion efficiency will reduce the burden on the look and set up of the fundamental laser amplifier plus the electric powered electrical power usage. A good beam high-quality of the fundamental laser can even lead into the expanding on the conversion performance and the right power depth of your NIR and inexperienced laser from the SHG and FHG system, respectively. The highest conversion efficiencies from NIR to green and green to DUV laser by usage of CLBO crystal are 70% and all over 50%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from fundamental to DUV.
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