CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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We summarized the current development position of the high-electric power DUV laser the two for the wavelength of FHG with the one-μm laser and at 193 nm. The new progress of your good-state/fiber laser, together with the nonlinear optical crystals, prompts not merely the average power but additionally the beam top quality (coherence) of your 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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Mainly because of the thermal lens outcome from the stable-condition lasers, When the heating administration is inadequate, It's not at all straightforward to acquire the reliable-point out laser by using a high electricity and a significant beam high quality concurrently. A short while ago, with the development of the thin disk laser and single-crystal fiber (SCF) laser, a high-energy laser at the fundamental wavelength (one μm) were realized with a superb beam top quality Despite having a TEM00 manner beam [4,24], which might be good candidates for the basic of the DUV laser generation. One more candidate for the fundamental may be the large-energy fiber laser which may be obtained by coherent beam combination with M2 value fewer than one.
On the opposite aspect, the facility scaling in the NIR laser is an additional facet to increase the average electricity of your 193-nm DUV laser. Because of the insufficient the large-ability amplification Alternative of the NIR laser (such as at 1553 nm), nonlinear frequency processes including optical parameter oscillation (OPO) could be applied to develop a wavelength converter by shifting the wavelength from one μm to the desired wavelength along with getting relative bigger electrical power [21]. Just lately, a diamond Raman laser showed its capability in reaching a large electrical power plus a substantial conversion efficiency in the 1st Stokes from the 1-μm laser [22,23], which means the likelihood to get applied within the 193-nm DUV laser technology as a consequence of its higher Raman gain and enormous frequency shift.
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The event from the 193-nm laser was shown by stages of SFG. In order check here to scale the DUV laser power correctly, a completely new strategy from the 193-nm DUV laser generation is introduced based upon the diamond Raman laser.