Indicators on CLBO Crystal You Should Know
Indicators on CLBO Crystal You Should Know
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Even so, in order to method the crystal may be very Superior production approaches are required. Because the dawn of this crystal, working on this challenge, we at the moment are the only corporation on earth which might be processed On this crystal.
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The common energy of the NIR laser even now has the prospective to get enhanced to tens of watts like 70 W [26] if the double-pass configuration can be utilized to the Yb:YAG SCF amplifier phase. Consequently, If your conversion performance of 31% from NIR to DUV can be even now managed at this greater electrical power issue, the common output electric power of the DUV laser at 258 nm could possibly be much more than twenty W, which might certainly be a exceptional electricity stage with the DUV laser and lead to the unanticipated DUV laser machining benefits. Also, for prime-electricity DUV laser, the UV problems on the nonlinear crystal, including the windows for CLBO crystal along with the mirrors, is an additional crucial parameter for long-term and stable Procedure.
Then again, the beam quality of this bigger energy DUV laser would become worse resulting from more really serious thermal and nonlinear consequences. Therefore, the frequency conversion processes must be diligently built to mitigate the aforementioned consequences. So, a high-electricity DUV laser within the FHG of one μm with a very good beam quality may be received and can be helpful for obtaining the shorter wavelength DUV lasers which include 193 nm by SFG.
A result of the thermal lens result within the good-condition lasers, When the heating administration is insufficient, It is far from easy to acquire the strong-point out laser using a superior electrical power and a large beam good quality at the same time. Not too long ago, with the event of The skinny disk laser and solitary-crystal fiber (SCF) laser, a superior-electrical power laser at the fundamental wavelength (one μm) more info had been recognized with a fantastic beam top quality In spite of a TEM00 mode beam [4,24], which would be fantastic candidates for the fundamental from the DUV laser era. A further prospect for the fundamental could be the significant-electrical power fiber laser which can be accomplished by coherent beam mix with M2 value lower than 1.
On another facet, the ability scaling of the NIR laser is an additional aspect to enhance the regular energy with the 193-nm DUV laser. As a result of not enough the higher-electric power amplification solution in the NIR laser (such as at 1553 nm), nonlinear frequency processes including optical parameter oscillation (OPO) may very well be placed on build a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength and also acquiring relative better ability [21]. Lately, a diamond Raman laser showed its capability in reaching a higher electrical power and also a superior conversion efficiency within the 1st Stokes of your one-μm laser [22,23], which means the likelihood for being applied during the 193-nm DUV laser era as a result of its higher Raman attain and huge frequency shift.
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Its UV absorption edge reaches one hundred eighty nm. The efficient nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as substantial as that of KDP. CLBO crystals can be developed from your stoichiometric soften with decrease viscosity.
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