Supercontinuum generation in a fiber grating

Abstract
We show that supercontinuum generation in a fiber containing a Bragg grating exhibits > 10 × enhancement near the Bragg resonance wavelength. We also show that the gratingdispersion exceeds the waveguidedispersion over a bandwidth far in excess of its photonic band gap. The observed enhancement is consistent with nonlinear Schrödinger equation simulations of the supercontinuum formation that combine grating and waveguidedispersion.