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We summarized The present enhancement status on the superior-electricity DUV laser each in the wavelength of FHG on the one-μm laser and at 193 nm. The current enhancement in the good-state/fiber laser, and also the nonlinear optical crystals, prompts not just the average electrical power but additionally the beam excellent (coherence) of the DUV lasers to an unprecedented degree.

The average power with the NIR laser however has the likely being improved to tens of watts such as 70 W [26] Should the double-move configuration could be utilized with the Yb:YAG SCF amplifier stage. As a result, When the conversion performance of 31% from NIR to DUV might be however maintained at this better energy issue, the standard output power from the DUV laser at 258 nm may be much more than 20 W, which would be a outstanding energy amount for your DUV laser and lead to the unanticipated DUV laser machining success. Moreover, for top-electricity DUV laser, the UV damage of your nonlinear crystal, including the Home windows for CLBO crystal as well as mirrors, is another vital parameter for long lasting and stable Procedure.

However, the beam good quality of this larger electricity DUV laser would grow to be worse due to additional really serious thermal and nonlinear consequences. As a result, the frequency conversion procedures must be meticulously intended to mitigate the aforementioned results. As a result, a more info substantial-electrical power DUV laser at the FHG of one μm with a very good beam high-quality may very well be acquired and may be useful for obtaining the shorter wavelength DUV lasers for instance 193 nm by SFG.

Because of the thermal lens impact in the stable-state lasers, If your heating management is insufficient, it is not effortless to acquire the sound-state laser by using a high electric power along with a large beam excellent at the same time. A short while ago, with the event of The skinny disk laser and one-crystal fiber (SCF) laser, a superior-ability laser at the elemental wavelength (one μm) had been understood with a good beam quality even with a TEM00 manner beam [4,24], which might be good candidates for the elemental of your DUV laser technology. A further prospect for the basic may be the large-energy fiber laser which may be achieved by coherent beam mix with M2 worth less than 1.

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of your Nd:YAG essential laser wavelength. So that you can greatly enhance the problems threshold, lower CLBO surface roughness, by extremely-precision machining, is necessary. As the CLBO crystal has uncomplicated hydroscopic reaction and micro scratches in machining, ultra-specific machining with the CLBO crystal is often a tricky complex issue.

Tunable ultraviolet laser source according to strong-state dye laser technology and CsLiB6O10 harmonic technology

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