The Definitive Guide to CLBO Crystal
The Definitive Guide to CLBO Crystal
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We summarized The present enhancement status of the significant-electricity DUV laser each within the wavelength of FHG on the one-μm laser and at 193 nm. The latest growth of the stable-condition/fiber laser, plus the nonlinear optical crystals, prompts not just the standard electrical power but also the beam good quality (coherence) of the DUV lasers to an unprecedented stage.
The standard energy on the NIR laser however has the probable to get improved to tens of watts like 70 W [26] if the double-go configuration may very well be utilized for your Yb:YAG SCF amplifier phase. For this reason, If your conversion efficiency of 31% from NIR to DUV may very well be nevertheless managed at this greater electric power situation, the normal output ability with the DUV laser at 258 nm may very well be greater than 20 W, which might be considered a extraordinary electrical power stage for the DUV laser and bring about the unanticipated DUV laser machining effects. Furthermore, for high-electric power DUV laser, the UV hurt of the nonlinear crystal, such as the Home windows for CLBO crystal plus the mirrors, is yet another critical parameter for long run and steady operation.
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As a result of thermal lens impact within the sound-point out lasers, If your heating management is insufficient, it is not easy to acquire the reliable-state laser which has a substantial electrical power along with a large beam good quality concurrently. A short while ago, with the event of the thin disk laser and one-crystal fiber (SCF) laser, a higher-electricity laser at the elemental wavelength (1 μm) had been realized with a superb beam high-quality even with a TEM00 method beam [four,24], which might be good candidates for the fundamental of your DUV laser generation. One more applicant for the elemental will be the substantial-electric power fiber laser which could be accomplished by coherent beam mixture with M2 benefit less than one.
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In addition, combining the reliable-point out laser with other nonlinear method for instance stimulated Raman scattering, NIR lasers could be accomplished at new wavelengths with significant electrical power and superior beam good quality, which was tested because of the evidence-of-principle experiment. This Raman laser scheme supplies a completely new path to the substantial-energy DUV laser, Specially at the wavelength of 193 nm.
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