CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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All-strong-state ultraviolet lasers happen to be broadly used in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of compact quantity, lengthy daily life, substantial efficiency, great beam top quality, broad tuning and narrow spectral line, etc. Using superior ability around-infrared coherent mild resource as the elemental frequency source based upon nonlinear tuning technological innovation, building ultraviolet coherent radiation by multistage frequency conversion is regarded as an important way to develop the ultraviolet coherent light source.
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According to the proof-of-basic principle experiment, the conversion efficiency of 23% implied the potential for achieving higher-electrical power at the next Stokes wavelength on the Raman laser. If your pump laser of 1078 nm could possibly be acquired at the common electrical power of fifty W, the output power of its 2nd Stokes wavelength at 1512 nm could be over 10 W. The design in the Raman laser cavity must be optimized so as to avoid the damage of your M1 and diamond floor.
The standard ability with the NIR laser even now has the possible to become enhanced to tens of watts which include 70 W [26] Should the double-move configuration may very well be used for your Yb:YAG SCF amplifier phase. For this reason, In case the conversion performance of 31% from NIR to DUV could possibly be continue to taken care of at this better energy affliction, the normal output electrical power of your DUV laser at 258 nm might be a lot more than twenty W, which might certainly be a outstanding energy stage for that DUV laser and lead to the unanticipated DUV laser machining outcomes. Moreover, for prime-electric power DUV laser, the UV damage in the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is yet another vital parameter for long-lasting and steady operation.
On the other hand, the beam quality of the greater energy DUV laser would turn out to be even worse because of extra significant thermal and nonlinear consequences. Therefore, the frequency conversion processes must be diligently designed to mitigate the aforementioned results. Consequently, a high-ability DUV laser for the FHG of one μm with a superb beam high-quality can be attained and can be useful for acquiring the shorter wavelength DUV lasers which include 193 nm by SFG.
Mainly because of the thermal lens result inside the sound-state lasers, In here case the heating management is insufficient, It isn't straightforward to acquire the good-point out laser using a substantial electrical power and a high beam high quality at the same time. Lately, with the development of the thin disk laser and single-crystal fiber (SCF) laser, a significant-electric power laser at the elemental wavelength (one μm) had been understood with a very good beam quality Despite a TEM00 manner beam [four,24], which might be superior candidates for the elemental of your DUV laser generation. A further candidate for the elemental is the higher-electrical power fiber laser which could be achieved by coherent beam mixture with M2 benefit a lot less than one.
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