A compact efficient continuous-wave self-frequency Raman laser with a composite YVO4/Nd:YVO4/YVO4 crystal
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- Fan, L., Fan, YX. & Wang, HT. Appl. Phys. B (2010) 101: 493. doi:10.1007/s00340-010-4272-7
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We report a low-threshold continuous-wave self-Raman laser with a composite YVO4/Nd:YVO4/YVO4 crystal. The use of the composite crystal can reduce the thermal effects and achieve the low-threshold and high Raman output operation. The Raman threshold is as low as 2.2 W for the 808-nm diode pump. Under the pump of a diode power of 25.5 W, the highest Raman output of 2.8 W is obtained at 1175 nm, corresponding to a slope efficiency of 12% and a diode-to-Stokes optical conversion efficiency of 11%. The power fluctuation is less than 1.1% under the highest Raman output.