Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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Nevertheless, as a way to procedure the crystal is incredibly State-of-the-art production strategies are required. For the reason that dawn of the crystal, focusing on this obstacle, we are now the one company on the earth that could be processed In this particular crystal.
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We summarized the current progress status on the higher-electricity DUV laser both of those on the wavelength of FHG of the 1-μm laser and at 193 nm. The current progress in the stable-point out/fiber laser, as well as the nonlinear optical crystals, prompts not just the average energy but additionally the beam top quality (coherence) in the DUV lasers to an unprecedented 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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On the opposite side, the facility scaling on the NIR laser is an additional element to increase the ordinary electric power from the 193-nm DUV laser. Because of the insufficient the significant-power amplification Resolution with the NIR laser (one example is at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) may be placed on establish a wavelength converter by shifting the wavelength from one μm to the specified wavelength and getting relative higher energy [21]. Not too long ago, a diamond Raman laser showed its capability in achieving a higher electric power and a high conversion efficiency at the 1st Stokes of the one-μm laser [22,23], which means the likelihood for being applied in the 193-nm DUV laser technology on account of its higher Raman attain and huge frequency shift.
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During the scientific and industrial programs, the beam high quality on the DUV laser is likewise a crucial parameter. Specially, the beam high-quality from the DUV laser substantially influences the laser machining success. The beam high quality from the DUV laser is decided by that of the basic laser and the crystal to the frequency conversion. Recently, a significant-energy DUV laser (>10 W) at 258 nm was described having a beam good quality of M2 < one.five, which was generated by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would bring about a far better laser machining result when compared with the past DUV lasers with larger sized M2.
The heart beat length of the second Stokes light-weight was shortened to five ns as proven in Determine 7a, an individual-shot picture with the oscilloscope, which can be a standard phenomenon in Raman laser [44] even though the pulse length with the pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics on the Nd:YAG basic laser wavelength. In order to improve the harm threshold, reduced CLBO surface area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, extremely-precise machining of your CLBO crystal is often a challenging technical challenge.
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