All-reliable-condition ultraviolet lasers have been widely used in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of modest quantity, extensive lifestyle, higher effectiveness, good beam high quality, broad tuning and narrow spectral line, and so on. Employing substantial electrical power close to-infrared coherent light supply as the fundamental frequency supply determined by nonlinear tuning engineering, building ultraviolet coherent radiation by multistage frequency conversion is thought to be a significant approach to produce the ultraviolet coherent mild resource.
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In accordance with the proof-of-theory experiment, the conversion performance of 23% implied the possibility of accomplishing large-ability at the second Stokes wavelength of your Raman laser. If your pump laser of 1078 nm may very well be attained at the standard ability of fifty W, the output electric power of its 2nd Stokes wavelength at 1512 nm may very well be much more than 10 W. The design of the Raman laser cavity need to be optimized to be able to stay away from the hurt on the M1 and diamond surface area.
The common electrical power from the NIR laser still has the potential to generally be enhanced to tens of watts for instance 70 W [26] In the event the double-go configuration may very well be utilized for the Yb:YAG SCF amplifier phase. That's why, In the event the conversion efficiency of 31% from NIR to DUV may very well be however taken care of at this higher electric power situation, the normal output power in the DUV laser at 258 nm can be greater than 20 W, which would be described as a remarkable electricity level to the DUV laser and lead to the unanticipated DUV laser machining benefits. What's more, for high-energy DUV laser, the UV injury with the nonlinear crystal, such as the Home windows for CLBO crystal as well as mirrors, is yet another important parameter for long lasting and stable Procedure.
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Moreover, combining the stable-condition laser with other nonlinear approach including stimulated Raman scattering, NIR lasers could be obtained at new wavelengths with large ability and significant beam good quality, which was analyzed via the proof-of-basic principle experiment. This Raman laser scheme gives a different route to the substantial-energy DUV laser, In particular with the wavelength of 193 nm.
Tunable ultraviolet laser resource according to stable-state dye laser know-how and CsLiB6O10 harmonic generation
Its UV absorption edge reaches a hundred and eighty nm. The helpful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as huge as that of KDP. CLBO crystals could be grown in the stoichiometric melt with reduce viscosity.
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