The Ultimate Guide To CLBO Crystal
The Ultimate Guide To CLBO Crystal
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All-sound-state ultraviolet lasers have already been broadly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of modest quantity, long existence, large effectiveness, excellent beam good quality, extensive tuning and slim spectral line, etcetera. Utilizing significant energy near-infrared coherent light resource as the fundamental frequency supply based upon nonlinear tuning engineering, creating ultraviolet coherent radiation by multistage frequency conversion is thought to be a crucial strategy to create the ultraviolet coherent gentle resource.
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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。
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While in the scientific and industrial apps, the beam excellent of your DUV laser can also be a crucial parameter. Notably, the beam good quality on the DUV laser substantially influences the laser machining benefits. The beam good quality in the DUV laser is decided by that of the basic laser and also the crystal for the frequency conversion. A short while ago, a substantial-energy DUV laser (>ten W) at 258 nm was noted which has a beam top quality of M2 < one.5, which was created by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would result in a far better laser machining end result in comparison to the past DUV lasers with more substantial M2.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of the Nd:YAG fundamental laser wavelength. As a way to increase the hurt threshold, very low CLBO floor roughness, by ultra-precision machining, is needed. As the CLBO crystal has uncomplicated hydroscopic reaction and micro scratches in machining, ultra-exact machining in the CLBO crystal can be a tricky technical trouble.
The beam profile shown in Figure 7b demonstrated a great beam excellent as one of many deserves of Raman laser, which might be effective to generate a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as huge as that of KDP. CLBO crystals may be developed in the stoichiometric soften with decreased viscosity.
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