The Greatest Guide To CLBO Crystal
The Greatest Guide To CLBO Crystal
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All-solid-condition ultraviolet lasers happen to be extensively Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of little quantity, extensive existence, large effectiveness, very good beam top quality, vast tuning and narrow spectral line, etc. Making use of large energy near-infrared coherent gentle source as the basic frequency source dependant on nonlinear tuning technological know-how, creating ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important strategy to develop the ultraviolet coherent mild supply.
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According to the proof-of-theory experiment, the conversion effectiveness of 23% implied the opportunity of achieving large-energy at the second Stokes wavelength in the Raman laser. In case the pump laser of 1078 nm may very well be attained at the average power of 50 W, the output power of its 2nd Stokes wavelength at 1512 nm could be greater than ten W. The design of the Raman laser cavity should be optimized so that you can stay away from the hurt from the M1 and diamond floor.
全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
Then again, the beam quality of this increased power DUV laser would turn into even worse on account of extra significant thermal and nonlinear consequences. Therefore, the frequency conversion processes must be thoroughly designed to mitigate the aforementioned effects. Thus, a higher-electrical power DUV laser with the FHG of one μm with a fantastic beam excellent can be attained and may be valuable for acquiring the shorter wavelength DUV lasers including 193 nm by SFG.
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The conversion efficiency from elementary NIR to DUV is from 5% to 36% based on the reported ends in Desk one. Expanding the conversion effectiveness will lessen the burden on the design and set up of the fundamental laser amplifier together with the electric electricity use. A superb beam quality of the basic laser will likely contribute for the raising of the conversion efficiency along with the suitable electricity depth with the NIR and inexperienced laser from the SHG and FHG system, respectively. The best conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and about fifty%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from basic to DUV.
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