All-stable-point out ultraviolet lasers are actually greatly Utilized in the fields of mechanical flaw detection, lithography, micromachining and medication for the advantages of smaller volume, extensive daily life, significant effectiveness, fantastic beam top quality, vast tuning and narrow spectral line, etcetera. Using large electrical power around-infrared coherent mild supply as the basic frequency resource based upon nonlinear tuning engineering, making ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important approach to establish the ultraviolet coherent mild supply.
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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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Both equally the 1040 nm and 1078 nm laser come 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 the opposite aspect, the power scaling of your NIR laser is yet another part to improve the common energy of your 193-nm DUV laser. Due to not enough the superior-electricity amplification Answer of your NIR laser (by way of example at 1553 nm), nonlinear frequency procedures for example optical parameter oscillation (OPO) could be applied to produce a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength and obtaining relative increased ability [21]. Not too long ago, a diamond Raman laser confirmed its capacity in acquiring a higher electrical power and also a superior conversion performance at the 1st Stokes from the 1-μm laser [22,23], which means the possibility to become applied within the 193-nm DUV laser generation thanks to its higher Raman gain and enormous frequency change.
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Its UV absorption edge reaches one hundred eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals is often grown from the stoichiometric soften with reduce viscosity.
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