All-solid-point out ultraviolet lasers have already been extensively Utilized in the fields of mechanical flaw detection, lithography, micromachining and medication for some great benefits of small volume, prolonged life, higher efficiency, fantastic beam quality, broad tuning and slender spectral line, etcetera. Using significant electrical power near-infrared coherent gentle source as the basic frequency source dependant on nonlinear tuning technological innovation, creating ultraviolet coherent radiation by multistage frequency conversion is regarded as an essential strategy to build the ultraviolet coherent light-weight supply.
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We summarized the current enhancement standing of your high-electrical power DUV laser both equally in the wavelength of FHG of the 1-μm laser and at 193 nm. The recent growth of your reliable-state/fiber laser, together with the nonlinear optical crystals, prompts not just the normal energy and also the beam high quality (coherence) on the DUV lasers to an unparalleled amount.
As an example, the current concave OC could be replaced by a airplane mirror which could mitigate the ability density within the surface of M1 plus the diamond. Also, making use of higher problems threshold coatings for M1 and diamond would also improve the output ability without any damages. Then, the NIR laser within the 2nd Stokes wavelength may more info be higher more than enough, along with its superior beam good quality, to crank out the ultimate DUV laser at 193 nm having a high ordinary electric power.
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Both equally the 1040 nm and 1078 nm laser come from one particular dual-wavelength Yb-doped fiber laser. Just about every laser is amplified by stages of fiber amplifier and Yb-doped resources amplifier, respectively.
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The pulse duration of the next Stokes mild was shortened to five ns as demonstrated in Figure 7a, one-shot image from the oscilloscope, and that is a common phenomenon in Raman laser [forty four] while the pulse length of your pump laser was 10 ns.
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Tunable ultraviolet laser supply according to solid-point out dye laser engineering and CsLiB6O10 harmonic generation
Its UV absorption edge reaches a hundred and eighty nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as huge as that of KDP. CLBO crystals is often grown through the stoichiometric soften with reduce viscosity.
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