Rumored Buzz on CLBO Crystal
Rumored Buzz on CLBO Crystal
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All-stable-point out ultraviolet lasers have been extensively used in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of small quantity, extensive everyday living, large efficiency, superior beam good quality, huge tuning and slim spectral line, and many others. Making use of substantial electricity around-infrared coherent light source as the basic frequency source dependant on nonlinear tuning know-how, producing ultraviolet coherent radiation by multistage frequency conversion is considered to be a vital way to produce the ultraviolet coherent gentle resource.
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In accordance with the evidence-of-basic principle experiment, the conversion efficiency of 23% implied the potential for reaching large-energy at the next Stokes wavelength of the Raman laser. In case the pump laser of 1078 nm can be obtained at the typical energy of 50 W, the output power of its 2nd Stokes wavelength at 1512 nm could be over 10 W. The design from the Raman laser cavity ought to be optimized so as to stay away from the hurt with the M1 and diamond floor.
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。
Then again, the beam top quality of the increased energy DUV laser would come to be worse due to far more serious thermal and nonlinear results. For this reason, the frequency conversion processes really should be diligently created to mitigate the aforementioned results. Consequently, a superior-energy DUV laser in the FHG of 1 μm with a great beam top quality could possibly be acquired and will be valuable for getting the shorter wavelength DUV lasers which include 193 nm by SFG.
A result of the thermal lens impact in the good-point out lasers, Should the heating administration is insufficient, It isn't straightforward to obtain the stable-condition laser with a significant electrical power along with a significant beam excellent concurrently. Recently, with the event of the thin disk laser and single-crystal fiber (SCF) laser, a high-ability laser at the elemental wavelength (1 μm) had been understood with an excellent beam high-quality even with a TEM00 mode beam [four,24], which might be excellent candidates for the elemental on the DUV laser era. Yet another candidate for the elemental could be the large-electrical power fiber laser which might be accomplished by coherent beam mixture with M2 price below one.
On another side, the power scaling with the NIR laser is another component to raise the average electricity of the 193-nm DUV laser. Due to lack of the large-ability amplification Answer on the NIR laser (as an example at 1553 nm), nonlinear frequency procedures for instance optical parameter oscillation (OPO) could possibly be placed on create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength as well as obtaining relative larger electric power [21]. Recently, a diamond Raman laser showed its capability in obtaining a substantial ability along with a higher conversion effectiveness on the 1st Stokes from the one-μm laser [22,23], which means the likelihood for being applied during the 193-nm DUV laser era due to its high Raman get and huge frequency shift.
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