The best Side of CLBO Crystal
The best Side of CLBO Crystal
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According to the proof-of-principle experiment, the conversion effectiveness of 23% implied the opportunity of reaching substantial-electric power at the next Stokes wavelength on the Raman laser. Should the pump laser of 1078 nm could be obtained at the average power of 50 W, the output power of its 2nd Stokes wavelength at 1512 nm might be greater than 10 W. The design of the Raman laser cavity should be optimized so that you can steer clear of the hurt of your M1 and diamond area.
The real key problem of ultraviolet coherent light source primarily focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the problems for frequency transformation, so the growth, dimension, harm resistance, conversion efficiency and allowable parameter number of nonlinear optical crystal are required more and more.
Then again, the beam high-quality of the higher energy DUV laser would grow to be worse as a result of far more critical thermal and nonlinear outcomes. For this reason, the frequency conversion procedures need to be diligently meant to mitigate the aforementioned outcomes. As a result, a large-energy DUV laser in the FHG of 1 μm with a great beam top quality could possibly be acquired and can be valuable for acquiring the shorter wavelength DUV lasers including 193 nm by SFG.
The two the 1040 nm and 1078 nm laser come from one twin-wavelength Yb-doped fiber laser. Every single laser is amplified by stages of fiber amplifier and Yb-doped resources amplifier, respectively.
On one other side, the facility scaling in the NIR laser is an additional aspect to improve the common electric power from the 193-nm DUV laser. Mainly because of the insufficient the significant-energy amplification Option of your NIR laser (by way of example at 1553 nm), nonlinear frequency procedures which include optical parameter oscillation (OPO) could possibly be applied to develop a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength together with getting relative bigger power [21]. Not too long ago, a diamond Raman laser showed its capability in obtaining a higher electric power in addition to a superior conversion effectiveness with the 1st Stokes in the 1-μm laser [22,23], which means the chance to get applied in the 193-nm DUV laser technology as a consequence of its large Raman get and large frequency change.
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The event from the 193-nm laser was shown by stages of SFG. In order to scale the DUV laser electricity effectively, a whole new thought from the 193-nm DUV laser era is introduced based on the diamond Raman laser.