Nevertheless, in an effort to method the crystal may be very Sophisticated production techniques are essential. Considering that the dawn of the crystal, working on this problem, we are actually the sole corporation in the world that can be processed Within this crystal.
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We summarized The existing growth status with the large-power DUV laser each within the wavelength of FHG on the one-μm laser and at 193 nm. The latest development on the good-point out/fiber laser, plus the nonlinear optical crystals, prompts not just the normal energy and also the beam high quality (coherence) in the DUV lasers to an unparalleled level.
As an illustration, the current concave OC could be replaced by a airplane mirror which could mitigate the facility density about the surface area of M1 as well as diamond. Additionally, using superior destruction threshold coatings for M1 and diamond would also improve the output electrical power with no damages. Then, the NIR laser in the 2nd Stokes wavelength could be substantial adequate, and also its excellent beam high quality, to crank out the final DUV laser at 193 nm that has a high common electric power.
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Equally the 1040 nm and 1078 nm laser come from one twin-wavelength Yb-doped fiber laser. Each individual laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
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During the scientific and industrial purposes, the beam excellent of your DUV laser is usually a very important parameter. Specially, the beam excellent in the DUV laser drastically affects the laser machining success. The beam excellent in the DUV laser is decided by that of the basic laser as well as the crystal for your frequency conversion. A short while ago, a superior-electricity DUV laser (>ten W) at 258 nm was documented which has a beam excellent of M2 < 1.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would bring about a far better laser machining end result compared to the earlier DUV lasers with larger sized M2.
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Additionally, combining the sound-point out laser with other nonlinear system including stimulated Raman scattering, NIR lasers may very well be achieved at new wavelengths with higher electrical power and substantial beam good quality, which was examined because of the evidence-of-basic principle experiment. This Raman laser plan presents a new path to the significant-electrical power DUV laser, Specially on the wavelength more info of 193 nm.
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Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as big as that of KDP. CLBO crystals can be developed from your stoichiometric soften with decreased viscosity.
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