The 2-Minute Rule for CLBO Crystal

Even so, to be able to course of action the crystal is incredibly Innovative manufacturing strategies are essential. Because the dawn of the crystal, working on this problem, we are now the only real corporation on earth that can be processed On this crystal.

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We summarized the current growth status on the superior-ability DUV laser the two on the wavelength of FHG of the 1-μm laser and at 193 nm. The current advancement in the stable-point out/fiber laser, in addition to the nonlinear optical crystals, prompts not merely the standard electrical power but will also the beam good quality (coherence) from 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。

Alternatively, the beam excellent of the bigger electricity DUV laser would grow to be worse due to more really serious thermal and nonlinear consequences. Consequently, the frequency conversion processes must be very carefully intended to mitigate the aforementioned results. As a result, a significant-electricity DUV laser at the FHG of 1 μm with a very good beam high-quality could be obtained and may be helpful for acquiring the shorter wavelength DUV lasers for instance 193 nm by SFG.

LBO can also be a fantastic nonlinear crystal which is always placed on the SHG from your NIR into the inexperienced. The DUV laser is frequently understood by two levels of SFG from the LBO crystals because there is absolutely no stage-matching angle for LBO to convert the environmentally friendly laser at 515 nm or 532 nm towards the DUV immediately by SHG [sixteen]. Not long ago, the NSBBF crystal has also demonstrated its probable to acquire a large conversion performance from 532 nm to 266 nm. The wander-off angle and deff of the NSBBF are almost comparable to Individuals of CLBO [seventeen].

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From the scientific and industrial purposes, the beam good quality from the DUV laser can also be a very important parameter. Notably, the beam high quality of the DUV laser substantially affects the laser machining success. The beam top quality with the DUV laser is determined by that of the basic laser as well as crystal for your frequency conversion. Not long ago, a substantial-power DUV laser (>ten W) at 258 nm was described with a beam good quality of M2 < 1.5, which was generated by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on an even better laser machining consequence in comparison to the earlier DUV lasers with bigger M2.

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The beam profile proven in Figure 7b demonstrated a superb beam high-quality as among the deserves of Raman laser, which would be useful to generate a 193-nm DUV more info laser with a high quality beam.

Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as substantial as that of KDP. CLBO crystals may be grown from your stoichiometric melt with reduce viscosity.

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