CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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We summarized The existing progress status of your substantial-energy DUV laser both of those for the wavelength of FHG in the one-μm laser and at 193 nm. The new growth of the reliable-point out/fiber laser, plus the nonlinear optical crystals, prompts not only the common ability but additionally the beam high-quality (coherence) from the DUV lasers to an unprecedented level.
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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Due to the thermal lens result in the stable-state lasers, In the event the heating administration is inadequate, It's not uncomplicated to obtain the sound-condition laser that has a high electric power along with a significant beam high quality simultaneously. Not long ago, with the event of the thin disk laser and single-crystal fiber (SCF) laser, a substantial-ability laser at the fundamental wavelength (1 μm) had been recognized with a very good beam high quality Despite a TEM00 method beam [4,24], which would be superior candidates for the basic on the DUV laser era. A different applicant for the basic could be the significant-electric power fiber laser which may very well be reached by coherent beam blend with M2 worth under 1.
On the other aspect, the power scaling of the NIR laser is yet another factor to raise the typical ability with the 193-nm DUV laser. A result of the insufficient the superior-electricity amplification Answer with the NIR laser (as an example at 1553 nm), nonlinear frequency procedures including optical parameter oscillation (OPO) may be applied to make a wavelength converter by shifting the CLBO Crystal wavelength from one μm to the desired wavelength along with getting relative higher electricity [21]. A short while ago, a diamond Raman laser confirmed its capacity in accomplishing a high electrical power and also a superior conversion performance for the 1st Stokes of the 1-μm laser [22,23], which means the chance to generally be used from the 193-nm DUV laser era because of its significant Raman get and huge frequency shift.
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In addition, combining the good-state laser with other nonlinear course of action like stimulated Raman scattering, NIR lasers may very well be achieved at new wavelengths with large energy and large beam excellent, which was analyzed via the evidence-of-principle experiment. This Raman laser plan gives a whole new path to the substantial-electric power DUV laser, especially at the wavelength of 193 nm.
The beam profile proven in Figure 7b demonstrated a superb beam high-quality as among the merits of Raman laser, which would be advantageous to create a 193-nm DUV laser with a high quality beam.
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