The Basic Principles Of CLBO Crystal
The Basic Principles Of CLBO Crystal
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On the other hand, so that you can course of action the crystal is incredibly Sophisticated producing tactics are necessary. Since the dawn of the crystal, engaged on this challenge, we at the moment are the sole enterprise on this planet that can be processed Within this crystal.
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We summarized The present advancement position with the large-energy DUV laser both of those on the wavelength of FHG of the 1-μm laser and at 193 nm. The the latest growth of your reliable-state/fiber laser, and also the nonlinear optical crystals, prompts not merely the standard electrical power but will also the beam high quality (coherence) on the DUV lasers to an unparalleled amount.
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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On one other aspect, the ability scaling on the NIR laser is an additional element to increase the ordinary electric power on the 193-nm DUV laser. As a result of lack of the superior-electric power amplification Remedy of your NIR laser (by way of example at 1553 nm), nonlinear frequency processes such as optical parameter oscillation (OPO) can be applied to produce a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength together with obtaining relative larger ability [21]. Not too long ago, a diamond Raman laser showed its skill in achieving a large electric power and a superior conversion efficiency on the 1st Stokes on the one-μm laser [22,23], which suggests the likelihood to get utilized while in the 193-nm DUV laser era on account of its substantial Raman achieve and huge frequency shift.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics from the Nd:YAG fundamental laser wavelength. To be able to enhance the damage threshold, small CLBO floor roughness, by ultra-precision machining, is necessary. Because the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, ultra-specific machining on the CLBO crystal is actually a difficult technological difficulty.
The beam profile shown in Figure 7b demonstrated a superb beam top quality as on the list of deserves of Raman laser, which might be effective to generate a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency website doubling at 1064nm is about twice as substantial as that of KDP. CLBO crystals might be grown with the stoichiometric melt with lessen viscosity.
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