The smart Trick of CLBO Crystal That No One is Discussing
The smart Trick of CLBO Crystal That No One is Discussing
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In accordance with the evidence-of-theory experiment, the conversion performance of 23% implied the potential of achieving large-electrical power at the second Stokes wavelength on the Raman laser. Should the pump laser of 1078 nm may be received at the normal electricity of fifty W, the output ability of its 2nd Stokes wavelength at 1512 nm may be in excess of 10 W. The design of your Raman laser cavity should be optimized in an effort to stay away from the destruction with the M1 and diamond area.
For instance, The existing concave OC could get replaced by a airplane mirror which could mitigate the ability density to the floor of M1 and also the diamond. What's more, making use of superior damage threshold coatings for M1 and diamond would also Increase the output power without any damages. Then, the NIR laser at the 2nd Stokes wavelength may very well be significant adequate, and also its great beam quality, to deliver the ultimate DUV laser at 193 nm with a higher regular electrical power.
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On one other facet, the facility scaling with the NIR laser is an additional facet to increase the ordinary ability with the 193-nm DUV laser. Due to insufficient the high-electricity amplification Resolution of the NIR laser (such as at 1553 nm), nonlinear frequency processes for example optical parameter oscillation (OPO) might be placed on build a wavelength converter by shifting the wavelength from one μm to the desired wavelength together with acquiring more info relative better energy [21]. Not long ago, a diamond Raman laser confirmed its capability in obtaining a superior power as well as a higher conversion effectiveness with the 1st Stokes with the one-μm laser [22,23], which suggests the likelihood for being applied inside the 193-nm DUV laser generation as a consequence of its higher Raman acquire and large frequency change.
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The beam profile shown in Figure 7b demonstrated a good beam high quality as one of many deserves of Raman laser, which would be helpful to create a 193-nm DUV laser with a high quality beam.
The conversion performance from elementary NIR to DUV is from 5% to 36% based on the noted brings about Table 1. Increasing the conversion effectiveness will reduce the stress on the design and set up of the fundamental laser amplifier together with the electric electric power consumption. A superb beam quality of the fundamental laser can even add towards the rising of your conversion efficiency along with the suitable electric power depth of your NIR and green laser within the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to eco-friendly and green to DUV laser by use of CLBO crystal are 70% and close to 50%, respectively [12], which corresponds into the conversion performance of 35% from fundamental to DUV.
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