The Basic Principles Of CLBO Crystal

All-sound-condition ultraviolet lasers are greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and medication for the benefits of tiny volume, extensive existence, high efficiency, fantastic beam high-quality, large tuning and slender spectral line, and many others. Making use of significant electrical power around-infrared coherent light-weight supply as the fundamental frequency supply depending on nonlinear tuning engineering, building ultraviolet coherent radiation by multistage frequency conversion is considered an important strategy to establish the ultraviolet coherent light-weight source.

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We summarized The existing growth status of your substantial-energy DUV laser equally on the wavelength of FHG of the one-μm laser and at 193 nm. The latest advancement from the good-condition/fiber laser, along with the nonlinear optical crystals, prompts don't just the typical electric power but also the beam top quality (coherence) of the DUV lasers to an unprecedented degree.

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。

On the flip side, the beam good quality of the greater electricity DUV laser would become worse because of additional serious thermal and nonlinear results. That's why, the frequency conversion processes really should be carefully created to mitigate the aforementioned results. As a result, a large-power DUV laser on the FHG of 1 μm with a very good beam high quality could possibly be received and can be helpful for obtaining the shorter wavelength DUV lasers including 193 nm by SFG.

Due to thermal lens influence while in the reliable-condition lasers, In case the heating management is inadequate, it is not easy to get the sound-point out laser using a higher electrical power and also a superior beam top quality simultaneously. Not long ago, with the event of The skinny disk laser and solitary-crystal fiber (SCF) laser, a superior-electric power laser at the basic wavelength (1 μm) had been realized with a good beam quality Despite having a TEM00 method beam [four,24], which might be superior candidates for the fundamental of the DUV laser generation. Yet another prospect for the fundamental may be the significant-power fiber laser which could possibly be reached by coherent beam blend with M2 price below 1.

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During the scientific and industrial applications, the beam high quality from the DUV laser can also be a crucial parameter. Specifically, the beam good quality in the DUV laser considerably impacts the laser machining outcomes. The beam quality from the DUV laser is decided by that of the basic laser and the crystal for that frequency conversion. Not too long ago, a high-electric power DUV laser (>10 W) at 258 nm was documented with a beam good quality of M2 < one.5, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would result in a much better laser machining result in comparison with the preceding DUV lasers with much larger M2.

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Also, combining the stable-state laser with other nonlinear approach including stimulated Raman scattering, NIR lasers can be attained at new wavelengths with superior electrical power and significant beam check here high quality, which was examined because of the evidence-of-theory experiment. This Raman laser plan presents a brand new route to the large-energy DUV laser, Particularly with the wavelength of 193 nm.

Tunable ultraviolet laser resource based on solid-state dye laser engineering and CsLiB6O10 harmonic generation

Its UV absorption edge reaches one hundred eighty nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals might be grown from your stoichiometric melt with lower viscosity.

The event of the 193-nm laser was demonstrated by stages of SFG. In an effort to scale the DUV laser electricity effectively, a whole new strategy of the 193-nm DUV laser era is offered determined by the diamond Raman laser.