The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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We summarized the current progress status of your higher-power DUV laser both of those within the wavelength of FHG with the one-μm laser and at 193 nm. The latest improvement of your sound-condition/fiber laser, and also the nonlinear optical crystals, prompts not only the typical electricity but in addition the beam excellent (coherence) with the DUV lasers to an unparalleled stage.
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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As a result of thermal lens result during the good-condition lasers, In the event the heating management is insufficient, it is not effortless to obtain the solid-point out laser using a higher power and also a high beam quality concurrently. Recently, with the development of The skinny disk laser and one-crystal fiber (SCF) laser, a high-electricity laser at the elemental wavelength (1 μm) had been realized with a superb beam high-quality In spite of a TEM00 manner beam [four,24], which might be good candidates for the elemental from the DUV laser era. One more prospect for the elemental will be the large-electricity fiber laser which can be obtained by coherent beam mixture with M2 worth below 1.
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While in the scientific and industrial apps, the beam excellent with the DUV laser is likewise a significant parameter. Specifically, the beam good quality of your DUV laser significantly affects the laser machining final results. The beam excellent on the DUV laser is determined by that of the basic laser plus the crystal with the frequency conversion. Not long ago, a superior-ability DUV laser (>10 W) at 258 nm was described that has a beam top check here quality of M2 < 1.5, which was generated by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring on an even better laser machining result when compared to the prior DUV lasers with more substantial M2.
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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 substantial as that of KDP. CLBO crystals can be developed within the stoichiometric melt with reduce viscosity.
The development of your 193-nm laser was demonstrated by levels of SFG. As a way to scale the DUV laser ability properly, a new principle of your 193-nm DUV laser generation is offered dependant on the diamond Raman laser.