Abstract
The possibility of single-frequency oscillation of a distributed feedback (DFB) Raman fibre laser at modest pump powers was first predicted in Ref. 1, for a 1-m cavity, where it was shown that very strong intensity buildup of the Raman Stokes is expected near the discrete phase shift of the DFB grating. More recently, Raman DFB fibre laser oscillation has been observed [2, 3, 4] in relatively short (12-30cm) DFB cavities.
© 2017 IEEE
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