Abstract
Nonlinear switching in Bragg gratings resulting in the formation of gap solitons has been well examined theoretically1 and more recently experimentally2 in fibre Bragg gratings (FBG). Nonlinear switching in fibre Bragg gratings requires extremely high powers due to the small nonlinearity of silica and hence if practical devices, which utilise the functionality of nonlinear Bragg gratings, are to be built then new materials must be found.
© 1999 Optical Society of America
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