Abstract

Ag-nanocrystal-incorporated germano-silicate optical fiber with high resonant nonlinearity was fabricated by using modified chemical vapor deposition and solution doping techniques. An all-optical signal switching application based on cross-phase modulation was demonstrated in the cascaded long-period fiber gratings. Pumped with 499nm argon laser, all-optical signal gating of the π-phase shift was achieved with low pump intensities of less than 7.64GWcm2.

© 2009 Optical Society of America

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