All-strong-condition ultraviolet lasers are actually extensively Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of small quantity, very long lifestyle, higher performance, superior beam good quality, large tuning and slim spectral line, and so on. Employing high electric power close to-infrared coherent mild resource as the basic frequency supply based upon nonlinear tuning technologies, creating ultraviolet coherent radiation by multistage frequency conversion is viewed as a vital method to acquire the ultraviolet coherent light resource.

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We summarized The existing development status of your significant-electrical power DUV laser both within the wavelength of FHG of the one-μm laser and at 193 nm. The new growth in the reliable-condition/fiber laser, in addition to the nonlinear optical crystals, prompts not only the normal energy and also the beam quality (coherence) in the DUV lasers to an unparalleled stage.

The average power of the NIR laser still has the possible to become enhanced to tens of watts for example 70 W [26] When the double-go configuration may be used for your Yb:YAG SCF amplifier phase. Therefore, Should the conversion effectiveness of 31% from NIR to DUV can be nevertheless managed at this greater electric power condition, the common output energy of the DUV laser at 258 nm might be much more than 20 W, which would be a extraordinary electricity level with the DUV laser and produce the unanticipated DUV laser machining benefits. In addition, for top-power DUV laser, the UV harm of the nonlinear crystal, such as the windows for CLBO crystal along with the mirrors, is another important parameter for long-term and stable Procedure.

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In addition, combining the reliable-state laser with other nonlinear procedure which include stimulated Raman scattering, NIR lasers can be achieved at new wavelengths with higher electrical power and substantial beam quality, which was read more examined from the proof-of-principle experiment. This Raman laser plan provides a fresh route to the large-ability DUV laser, Primarily with the wavelength of 193 nm.

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