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Multi-wavelength, all-solid-state, continuous wave mode locked picosecond Raman laser

Granados, Eduardo and Pask, Helen M and Esposito, Elric and McConnell, Gail and Spence, David. J. (2010) Multi-wavelength, all-solid-state, continuous wave mode locked picosecond Raman laser. Optics Express, 18 (5). pp. 5289-5294.

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Abstract

We demonstrate the operation of a cascaded continuous wave (CW) mode-locked Raman oscillator. The output pulses were compressed from 28 ps at 532 nm down to 6.5 ps at 559 nm (first Stokes) and 5.5 ps at 589 nm (second Stokes). The maximum output was 2.5 W at 559 nm and 1.4 W at 589 nm with slope efficiencies up to 52%. This technique allows simple and efficient generation of short-pulse radiation to the cascaded Stokes wavelengths, extending the mode-locked operation of Raman lasers to a wider range of visible wavelengths between 500 - 650 nm based on standard inexpensive picosecond Nd:YAG oscillators.