CLBO Crystal Secrets

CLBO Crystal Secrets

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Based on the proof-of-principle experiment, the conversion performance of 23% implied the potential for accomplishing substantial-electricity at the next Stokes wavelength in the Raman laser. In the event the pump laser of 1078 nm may be acquired at the typical electric power of 50 W, the output electricity of its 2nd Stokes wavelength at 1512 nm might be much more than 10 W. The look from the Raman laser cavity need to be optimized as a way to stay away from the damage on the M1 and diamond area.

The main element challenge of ultraviolet coherent gentle resource predominantly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the circumstances for frequency transformation, so the growth, dimension, harm resistance, conversion efficiency and allowable parameter selection of nonlinear optical crystal are required Increasingly more.

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Each the 1040 nm and 1078 nm laser originate from just one dual-wavelength Yb-doped fiber laser. Every laser is amplified by levels of fiber amplifier and Yb-doped elements amplifier, respectively.

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During the scientific and industrial apps, the beam top quality of the DUV laser is usually a significant parameter. Especially, the beam quality with the DUV laser drastically has an effect on the laser machining final results. The beam quality on the DUV laser is decided by that of the fundamental laser plus the crystal for the frequency conversion. Not too long ago, a significant-energy DUV laser (>10 W) at 258 nm was documented which has a beam high quality of M2 < 1.five, which was generated by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would produce a greater laser machining end result when compared to the former DUV lasers with larger M2.

The heart beat duration of the next Stokes light-weight was shortened to 5 ns as demonstrated in Determine 7a, just one-shot photo from the oscilloscope, that's a standard phenomenon in Raman laser [forty four] whilst the heartbeat length of your pump laser was ten ns.

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Tunable ultraviolet laser supply determined by reliable-condition dye laser know-how and CsLiB6O10 harmonic era

The conversion effectiveness from essential NIR to DUV is from 5% to 36% based on the reported leads to Desk one. Escalating the conversion performance will reduce the load on the look and set up of the fundamental laser amplifier plus 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 electrical power intensity from the NIR and eco-friendly laser within the SHG check here and FHG method, respectively. The best conversion efficiencies from NIR to inexperienced and eco-friendly to DUV laser by use of CLBO crystal are 70% and around 50%, respectively [12], which corresponds to the conversion performance of 35% from elementary to DUV.

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