Abstract
Intra-cavity sum frequency generation (SFG) of c-cut Nd:YVO4 self-Raman laser was investigated for the first time. A 4 × 4 × 10 mm3 KTP crystal with a type-II phase-matching cutting angle (θ = 83.4°, φ = 0°) was used for SFG between the fundamental light at 1066 nm and first-Stokes light at 1178 nm. The laser system with different curvature radii of output couplers and different pulse repetition frequencies were investigated. At a pump power of 14 W and pulse repetition frequency of 20 kHz, the average output power of yellow-green laser at 560 nm up to 840 mW was achieved, corresponding to a slope efficiency of 7.6% and a conversion efficiency of 6% with respect to diode pump power.
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Duan, Y.M., Zhang, G., Zhang, Y.J. et al. LD end-pumped c-Cut Nd:YVO4/KTP self-Raman laser at 560 nm. Laser Phys. 21, 1859–1862 (2011). https://doi.org/10.1134/S1054660X11190108
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DOI: https://doi.org/10.1134/S1054660X11190108