A low-power all-optical-switching in a phase-shifted grating has been experimentally demonstrated at 1.55 /spl mu/m. The grating is written in a standard fiber for communication and the switching is based on the cross-phase modulation induced by an intense pump pulse on a low intensity probe. An extinction ratio of more than 6 dB has been achieved for 1 kW pulse peak power. The strong enhancement of the nonlinear effect due to the group velocity reduction and the switching polarization dependence have been theoretically investigated and experimentally confirmed.
All optical Switching in Phase Shifted Fiber Bragg Grating
MARTINELLI, MARIO;MELLONI, ANDREA IVANO
2000-01-01
Abstract
A low-power all-optical-switching in a phase-shifted grating has been experimentally demonstrated at 1.55 /spl mu/m. The grating is written in a standard fiber for communication and the switching is based on the cross-phase modulation induced by an intense pump pulse on a low intensity probe. An extinction ratio of more than 6 dB has been achieved for 1 kW pulse peak power. The strong enhancement of the nonlinear effect due to the group velocity reduction and the switching polarization dependence have been theoretically investigated and experimentally confirmed.File in questo prodotto:
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