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In comparison with BBO it options greater spectral and temperature acceptance, better angle tolerance, plus a lesser walk-off angle. from 3289 $ delivery
According to the evidence-of-basic principle experiment, the conversion effectiveness of 23% implied the potential of acquiring higher-electric power at the 2nd Stokes wavelength of your Raman laser. When the pump laser of 1078 nm could possibly be acquired at the common energy of 50 W, the output energy of its 2nd Stokes wavelength at 1512 nm could possibly be more than ten W. The look of your Raman laser cavity should be optimized so as to steer clear of the destruction of the M1 and diamond surface area.
The main element trouble 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 situations for frequency transformation, so the growth, dimension, problems resistance, conversion effectiveness and allowable parameter variety of nonlinear optical crystal are essential A lot more.
Conversely, the beam excellent of this better electricity DUV laser would come to be worse on account of extra significant thermal and nonlinear results. Therefore, the frequency conversion procedures need to be cautiously intended to mitigate the aforementioned consequences. Thus, a higher-electrical power DUV laser with the FHG of one μm with a great beam top quality may very well be acquired and can be valuable for getting the shorter wavelength DUV lasers which include 193 nm by SFG.
Both the 1040 nm and 1078 nm laser come from one dual-wavelength Yb-doped fiber laser. Just about every laser is amplified by phases of fiber amplifier and Yb-doped supplies amplifier, respectively.
On another facet, the facility scaling in the NIR laser is another aspect to raise the typical power with the 193-nm DUV laser. A result of the not enough the significant-electric power amplification Resolution from the NIR laser (for example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) can be applied to establish a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and also obtaining relative greater electricity [21]. Recently, a diamond Raman laser showed its skill in achieving a large electricity in addition to a high conversion efficiency in the 1st Stokes from the 1-μm laser [22,23], which suggests the likelihood to get utilized while in the 193-nm DUV laser generation as a result of its substantial Raman get and enormous frequency shift.
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What's more, combining the solid-condition laser with other nonlinear method which include stimulated Raman scattering, NIR lasers could possibly be realized at new wavelengths with high electrical power and significant beam excellent, which was analyzed by the proof-of-principle experiment. This Raman laser scheme offers a fresh route to the large-electricity DUV laser, Specially at the wavelength of 193 nm.
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The conversion performance from basic NIR to DUV is from five% to 36% based on the reported ends in Table 1. Increasing the conversion performance will reduce the stress on the design and setup of the elemental laser amplifier in addition to the electric powered ability usage. A fantastic beam high quality of the basic laser will likely add for the raising of your conversion efficiency as well as the appropriate electrical power intensity on the NIR and inexperienced laser during the SHG and FHG process, respectively. The best conversion efficiencies from NIR to green and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all-around fifty%, respectively [twelve], which corresponds for read more the conversion efficiency of 35% from fundamental to DUV.
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