The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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Having said that, in order to course of action the crystal is very Superior production approaches are required. Since the dawn of the crystal, engaged on this challenge, we are actually the sole firm on the globe which can be processed With this crystal.
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We summarized The present development position of your higher-power DUV laser both in the wavelength of FHG on the 1-μm laser and at 193 nm. The the latest development of the good-state/fiber laser, and also the nonlinear optical crystals, prompts not just the common energy and also the beam high quality (coherence) with the DUV lasers to an unparalleled degree.
The crucial element difficulty of ultraviolet coherent mild resource primarily focuses on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the conditions for frequency transformation, so The expansion, dimensions, hurt resistance, conversion performance and allowable parameter choice of nonlinear optical crystal are demanded Progressively more.
Then again, the beam good quality of the higher energy DUV laser would develop into even worse due to a lot more major thermal and nonlinear effects. Hence, the frequency conversion processes needs to be thoroughly meant to mitigate the aforementioned results. Consequently, a high-energy DUV laser with the FHG of one μm with a fantastic beam high-quality could be obtained and may be beneficial for obtaining the shorter wavelength DUV lasers for instance 193 nm by SFG.
Because of the thermal lens effect in the solid-point out lasers, In case the heating management is insufficient, it is not quick to get the solid-condition laser which has a large ability plus a superior beam top quality at the same time. Lately, with the development of the thin disk laser and solitary-crystal fiber (SCF) laser, a higher-electricity laser at the basic wavelength (one μm) were understood with a great beam excellent Despite having a TEM00 mode beam [4,24], which would be very good candidates for the basic with the DUV laser generation. A further prospect for the basic could be the significant-ability fiber laser which can be realized by coherent beam blend with M2 worth lower than one.
On one other aspect, the power scaling of your NIR laser is yet another factor to increase the normal electricity from the 193-nm DUV laser. Because of the not enough the significant-electrical power amplification solution with the NIR laser (as an example at 1553 nm), nonlinear frequency procedures for example optical parameter oscillation (OPO) might be placed on build a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength and obtaining relative larger electric power [21]. Recently, a diamond Raman laser showed its capacity in accomplishing a superior power along with a large conversion effectiveness on the 1st Stokes on the 1-μm laser [22,23], which implies the chance to generally be used in the 193-nm DUV laser generation due to its higher Raman acquire and large frequency change.
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Additionally, combining the stable-point out laser with other nonlinear process like stimulated Raman scattering, NIR lasers may be reached at new wavelengths with superior ability and high beam top quality, which was tested from the proof-of-basic principle experiment. This Raman laser plan supplies a fresh route to the superior-electrical power more info DUV laser, especially with the wavelength of 193 nm.
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The development of your 193-nm laser was demonstrated by phases of SFG. So that you can scale the DUV laser electrical power proficiently, a whole new concept in the 193-nm DUV laser era is presented depending on the diamond Raman laser.