All-good-point out ultraviolet lasers have been widely used in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of smaller volume, long existence, higher effectiveness, excellent beam good quality, extensive tuning and slim spectral line, and so on. Using higher ability near-infrared coherent light-weight source as the elemental frequency supply according to nonlinear tuning technologies, making ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important strategy to establish the ultraviolet coherent mild resource.
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We summarized The existing growth status with the large-power DUV laser both equally in the wavelength of FHG of your 1-μm laser and at 193 nm. The latest improvement with the sound-condition/fiber laser, in addition to the nonlinear optical crystals, prompts don't just the typical electric power but also the beam good quality (coherence) of the DUV lasers to an unprecedented level.
The true secret challenge of ultraviolet coherent light-weight resource predominantly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the conditions for frequency transformation, so The expansion, dimensions, problems resistance, conversion efficiency and allowable parameter array of nonlinear optical crystal are essential A lot more.
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The two the 1040 nm and 1078 nm laser originate from 1 twin-wavelength Yb-doped fiber laser. Every laser is amplified by levels of fiber amplifier and Yb-doped supplies amplifier, respectively.
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