All-solid-condition ultraviolet lasers have already been widely Utilized in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of modest quantity, prolonged lifestyle, significant efficiency, fantastic beam high quality, huge tuning and narrow spectral line, etc. Utilizing large ability close to-infrared coherent gentle resource as the fundamental frequency supply dependant on nonlinear tuning technological innovation, building ultraviolet coherent radiation by multistage frequency conversion is viewed as an important strategy to establish the ultraviolet coherent light source.
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We summarized The present advancement status in the substantial-energy DUV laser the two on the wavelength of FHG with the one-μm laser and at 193 nm. The recent advancement on the strong-point out/fiber laser, along with the nonlinear optical crystals, prompts not merely the normal electric power but in addition the beam high-quality (coherence) from the DUV lasers to an unparalleled stage.
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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Each the 1040 nm and 1078 nm laser originate from one particular dual-wavelength Yb-doped fiber laser. Every single laser is amplified by stages of fiber amplifier and Yb-doped supplies amplifier, respectively.
On another side, the power scaling on the NIR laser is another factor to improve the typical electrical power of the 193-nm DUV laser. Due to the not enough the superior-power amplification Resolution with the NIR laser (for example at 1553 nm), nonlinear frequency procedures such as optical parameter oscillation (OPO) can be applied to develop a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and obtaining relative larger electrical power [21]. Just lately, a diamond Raman laser showed its ability in reaching a substantial electricity plus a significant conversion effectiveness with the 1st Stokes with the 1-μm laser [22,23], which suggests the likelihood to be applied during the 193-nm DUV laser era on account of its high Raman acquire and large frequency change.
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Tunable ultraviolet laser resource depending on good-condition dye laser more info engineering and CsLiB6O10 harmonic generation
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The event of your 193-nm laser was demonstrated by phases of SFG. To be able to scale the DUV laser energy efficiently, a fresh concept of your 193-nm DUV laser generation is introduced based on the diamond Raman laser.