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By way of example, The present concave OC could be replaced by a aircraft mirror which could mitigate the ability density around the area of M1 plus the diamond. In addition, utilizing significant hurt threshold coatings for M1 and diamond would also Enhance the output ability with no damages. Then, the NIR laser at the 2nd Stokes wavelength could be high ample, as well as its excellent beam top quality, to generate the ultimate DUV laser at 193 nm using a large regular power.
On the other hand, the beam excellent of the greater electricity DUV laser would come to be worse on account of additional serious thermal and nonlinear effects. That's why, the frequency conversion processes needs to be very carefully created to mitigate the aforementioned effects. Hence, a high-power DUV laser within the FHG of one μm with a fantastic beam good quality might be acquired and will be valuable for obtaining the shorter wavelength DUV lasers for instance 193 nm by SFG.
Both equally the 1040 nm and 1078 nm laser come from one twin-wavelength Yb-doped fiber laser. Every single laser is amplified by stages of fiber amplifier and Yb-doped products amplifier, respectively.
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Inside the scientific and industrial applications, the beam quality with the DUV laser can be a crucial parameter. Specially, the beam good quality in the DUV laser significantly has an effect on the laser machining benefits. The beam high-quality on the DUV laser is determined by that of the basic laser and the crystal to the frequency conversion. Recently, a significant-power DUV laser (>10 W) at 258 nm was claimed which has a beam high quality of M2 < 1.five, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would cause a much better laser machining result when compared to the previous DUV lasers with greater M2.
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Tunable ultraviolet laser supply depending on sound-state dye laser engineering and CsLiB6O10 harmonic generation
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