All-solid-condition ultraviolet lasers are extensively used in the fields of mechanical flaw detection, lithography, micromachining and drugs for the advantages of modest volume, very long lifestyle, large effectiveness, very good beam quality, wide tuning and slim spectral line, and many others. Employing large electric power around-infrared coherent mild resource as the elemental frequency resource dependant on nonlinear tuning know-how, building ultraviolet coherent radiation by multistage frequency conversion is regarded as a vital way to develop the ultraviolet coherent light-weight source.
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We summarized The present enhancement position of your high-power DUV laser equally at the wavelength of FHG on the one-μm laser and at 193 nm. The current improvement in the strong-condition/fiber laser, plus the nonlinear optical crystals, prompts not only the typical electric power but additionally the beam high quality (coherence) from the DUV lasers to an unprecedented degree.
全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
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Equally the 1040 nm and 1078 nm laser originate from one dual-wavelength Yb-doped fiber laser. Each laser is amplified by stages of fiber amplifier and Yb-doped products amplifier, respectively.
On the opposite facet, the ability scaling with the NIR laser is another factor to increase the regular electricity of your 193-nm DUV laser. Due to insufficient the significant-electrical power amplification Alternative of the NIR laser (as an example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) may very well be placed on establish a wavelength converter by shifting the wavelength from one μm to the specified wavelength as well as obtaining relative higher energy [21]. Lately, a diamond Raman laser confirmed its means in accomplishing a substantial electric power in addition to a high conversion efficiency at the 1st Stokes of the one-μm laser [22,23], which suggests the possibility to be used in the 193-nm DUV laser generation because of its large Raman obtain and huge frequency change.
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Tunable ultraviolet laser supply based on reliable-state dye laser know-how and CsLiB6O10 harmonic generation
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The development on the 193-nm laser was shown by levels of SFG. In order to scale the DUV laser energy successfully, a fresh idea from the 193-nm DUV laser technology is offered according to the diamond Raman laser.