All-solid-condition ultraviolet lasers are widely used in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of compact quantity, very long everyday living, superior efficiency, good beam high-quality, wide tuning and slim spectral line, and so forth. Employing high energy in the vicinity of-infrared coherent gentle resource as the basic frequency source according to nonlinear tuning technological innovation, making ultraviolet coherent radiation by multistage frequency conversion is thought to be an essential method to develop the ultraviolet coherent mild source.

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As an illustration, The present concave OC could be replaced by a plane mirror which could mitigate the ability density within the floor of M1 plus the diamond. Moreover, utilizing large harm threshold coatings for M1 and diamond would also Increase the output electricity with no damages. Then, the NIR laser within the 2nd Stokes wavelength may very well be high adequate, and its very good beam high-quality, to deliver the ultimate DUV laser at 193 nm which has a higher regular electricity.

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Inside the scientific and industrial programs, the beam good quality on the DUV laser is likewise a significant parameter. Significantly, the beam good quality of your DUV laser dramatically has an effect on the laser machining benefits. The beam top quality of the DUV laser is set by that of the fundamental laser plus the crystal for your frequency conversion. A short while ago, a substantial-energy DUV laser (>ten W) at 258 nm was claimed by using a beam quality of M2 < 1.five, which was generated by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring on a greater laser machining consequence when compared with the former DUV lasers with greater M2.

The heartbeat duration of the next Stokes light was shortened to five ns as demonstrated in Determine 7a, an individual-shot image from your oscilloscope, which is a typical phenomenon in Raman laser [forty four] whilst the heartbeat period in the pump laser was ten ns.

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Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear website optical coefficient of CLBO for frequency doubling at 1064nm is about two times as large as that of KDP. CLBO crystals is usually grown from the stoichiometric soften with reduce viscosity.

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