The Ultimate Guide To CLBO Crystal
The Ultimate Guide To CLBO Crystal
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Based on the evidence-of-basic principle experiment, the conversion efficiency of 23% implied the potential of accomplishing superior-electricity at the 2nd Stokes wavelength with the Raman laser. In the event the pump laser of 1078 nm can be obtained at the average electrical power of fifty W, the output electric power of its 2nd Stokes wavelength at 1512 nm could be greater than ten W. The look on the Raman laser cavity should be optimized as a way to stay away from the harm of the M1 and diamond area.
The real key problem of ultraviolet coherent light source primarily concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the conditions for frequency transformation, so the growth, size, damage resistance, conversion efficiency and allowable parameter variety of nonlinear optical crystal are expected Increasingly more.
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While in the scientific and industrial apps, the beam good quality on the DUV laser is additionally a crucial parameter. Specifically, the beam high quality of the DUV laser radically influences the laser machining outcomes. The beam quality with the DUV laser is determined by that of the elemental laser as well as the crystal for the frequency conversion. Just lately, a substantial-power DUV laser (>10 W) at 258 nm was described having a beam high-quality of M2 < 1.five, which was created by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would bring about a far better laser machining outcome as compared to the earlier DUV lasers with much larger M2.
The pulse period of the second Stokes light-weight was shortened to 5 ns as shown in Determine 7a, just one-shot photograph with the oscilloscope, which can be a standard phenomenon in Raman laser [44] whilst the heart beat duration in the pump laser was ten ns.
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The conversion performance from basic NIR to DUV is from five% to 36% according to the described results in Table 1. Expanding the conversion efficiency will decrease the stress on the look and set up of the fundamental laser amplifier together with the electric powered energy usage. A fantastic beam quality of the fundamental laser will even lead to your expanding of the conversion efficiency in addition to the appropriate energy intensity in the NIR and eco-friendly laser in the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to green and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all over 50%, respectively [12], which corresponds to the conversion performance of 35% from basic to DUV.
The event of the 193-nm laser was demonstrated by more info phases of SFG. To be able to scale the DUV laser electricity effectively, a completely new idea on the 193-nm DUV laser era is offered dependant on the diamond Raman laser.