Non-resonant optical nonlinearity of germano-silicate optical fiber incorporated with Si nanocrystals

Abstract

The non-resonant optical nonlinearity of a germano-silicate glass optical fiber with silicon (Si) nanocrystals incorporated, fabricated by using a, modified chemical vapor deposition process, was investigated by the continuous-wave self-phase modulation method. The measured non-resonant, nonlinear refractive index, n(2) = 5.70 x 10(-20) m(2)/W, of the fiber was found to be similar to 2 times larger than that of the fiber without Si incorporation.