The effect of pulse walkoff on stimulated Raman scattering in fibers |
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Authors: | Stolen R. Johnson A. |
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Affiliation: | AT&T Bell Labs., Holmdel, NJ, USA; |
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Abstract: | We have experimentally investigated stimulated Raman scattering in single-mode fibers in the regime of large Raman Stokes pulse walkoff from the pump pulse by the effect of group-velocity dispersion. Measurements are made with 36 ps duration pulses at 532 nm produced from a frequency-doubled and harmonically mode-locked Nd:YAG laser. We find that for 20 percent conversion, the Raman output is produced about two walkoff lengths into the fiber as a pulse of approximately the same duration as the input pulse. We also find that the Raman pulse is produced with a strong frequency chirp. |
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