5 Easy Facts About CLBO Crystal Described
5 Easy Facts About CLBO Crystal Described
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All-good-state ultraviolet lasers are already commonly used in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of small quantity, prolonged lifetime, superior effectiveness, very good beam top quality, large tuning and slim spectral line, etc. Employing substantial electric power in close proximity to-infrared coherent mild source as the fundamental frequency resource dependant on nonlinear tuning technological innovation, generating ultraviolet coherent radiation by multistage frequency conversion is viewed as a very important technique to create the ultraviolet coherent gentle resource.
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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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Equally the 1040 nm and 1078 nm laser come from 1 dual-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
On another side, the facility scaling of your NIR laser is an additional factor to improve the regular electrical power from the 193-nm DUV laser. Because of the not enough the high-ability amplification Resolution from the NIR laser (one example is at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) may very well be applied to create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength along with getting relative larger power [21]. Not long ago, a diamond Raman laser showed its skill in reaching a substantial ability along with a large conversion effectiveness for the 1st Stokes of your one-μm laser [22,23], which means the chance to be applied in the 193-nm DUV laser generation as a result of its substantial Raman acquire and large frequency change.
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The beam profile proven in Figure 7b demonstrated a very good beam high quality as one of several merits of Raman laser, which might be advantageous to make a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches 180 nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as large as that of KDP. CLBO crystals more info could be grown through the stoichiometric melt with lessen viscosity.
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