CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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All-solid-condition ultraviolet lasers have already been commonly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for the benefits of small volume, extended existence, substantial performance, fantastic beam excellent, extensive tuning and slender spectral line, etcetera. Utilizing substantial ability in the vicinity of-infrared coherent light-weight source as the basic frequency resource determined by nonlinear tuning engineering, making ultraviolet coherent radiation by multistage frequency conversion is considered to be a significant solution to create the ultraviolet coherent light resource.
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In accordance with the evidence-of-principle experiment, the conversion efficiency of 23% implied the potential of obtaining significant-power at the 2nd Stokes wavelength from the Raman laser. When the pump laser of 1078 nm may very well be received at the standard ability of fifty W, the output electrical power of its 2nd Stokes wavelength at 1512 nm may be in excess of ten W. The look with the Raman laser cavity must be optimized so that you can steer clear of the hurt of the M1 and diamond area.
The average ability with the NIR laser even now has the prospective to be enhanced to tens of watts including 70 W [26] if the double-pass configuration could possibly be used to the Yb:YAG SCF amplifier phase. That's why, if the conversion effectiveness of 31% from NIR to DUV could be even now managed at this larger ability issue, the common output power in the DUV laser at 258 nm may very well be more than 20 W, which would become a amazing ability amount with the DUV laser and lead to the unanticipated DUV laser machining outcomes. Moreover, for prime-electricity DUV laser, the UV hurt on the nonlinear crystal, including the windows for CLBO crystal and the mirrors, is yet another significant parameter for lasting and steady operation.
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As a result of thermal lens outcome while in the good-state lasers, If your heating administration is insufficient, It's not necessarily simple to get the good-point out laser having a substantial power plus a significant beam quality simultaneously. Not too long ago, with the development of the thin disk laser and one-crystal fiber (SCF) laser, a significant-energy laser at the fundamental wavelength (1 μm) were understood with a fantastic beam good quality even with a TEM00 mode beam [four,24], which might be very good candidates for the fundamental of the DUV laser technology. Yet another candidate for the fundamental is the superior-electric power fiber laser which could possibly be accomplished by coherent beam blend with M2 value a lot less than 1.
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The beam profile revealed in Determine 7b demonstrated a very good beam good quality as one of many merits of Raman laser, which would be effective to deliver a 193-nm DUV laser with a top quality beam.
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The event of the 193-nm laser more info was demonstrated by phases of SFG. In order to scale the DUV laser electric power efficiently, a brand new thought on the 193-nm DUV laser generation is presented based upon the diamond Raman laser.