All-strong-state ultraviolet lasers have already been greatly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of small quantity, extensive everyday living, superior effectiveness, very good beam excellent, broad tuning and narrow spectral line, etc. Employing significant electrical power close to-infrared coherent light-weight source as the elemental frequency source dependant on nonlinear tuning technology, producing ultraviolet coherent radiation by multistage frequency conversion is considered to be a vital way to produce the ultraviolet coherent light-weight source.
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We summarized The existing progress status of your significant-electrical power DUV laser both for the wavelength of FHG in the one-μm laser and at 193 nm. The current enhancement in the good-state/fiber laser, in addition to the nonlinear optical crystals, prompts not merely the standard electrical power and also the beam high quality (coherence) on the DUV lasers to an unparalleled degree.
The crucial element problem of ultraviolet coherent light source generally concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the situations for frequency transformation, so the growth, dimension, harm resistance, conversion effectiveness and allowable parameter number of nonlinear optical crystal are demanded more and more.
Alternatively, the beam good quality of this increased power DUV laser would develop into even worse because of much more really serious thermal and nonlinear effects. That's why, the frequency conversion procedures should be very carefully built to mitigate the aforementioned consequences. Thus, a higher-electrical power DUV laser with the FHG of 1 μm with an excellent beam top quality can be obtained and may be effective for getting the shorter wavelength DUV lasers for example 193 nm by SFG.
Both equally the 1040 nm and 1078 nm laser come from 1 twin-wavelength Yb-doped fiber laser. Each click here individual laser is amplified by phases of fiber amplifier and Yb-doped materials amplifier, respectively.
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Tunable ultraviolet laser supply based upon stable-condition dye laser know-how and CsLiB6O10 harmonic technology
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