We propose a novel and simple method for estimating the fractional Raman contribution, f, based on an analysis of a full model of modulation instability (MI) in waveguides. An analytical expression relating f to the MI peak gain beyond the cutoff power is explicitly derived, allowing for an accurate estimation of f from a single measurement of the Raman gain spectrum.
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| http://dx.doi.org/10.1364/OL.44.000538 | DOI Listing |
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