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Demonstration of differential phase-shift keying demodulation at 10   Gbit ∕ s optimal fiber Bragg grating filters

Davide Gatti, Gianluca Galzerano, Paolo Laporta, Stefano Longhi, Davide Janner, Andrea Guglierame, and Michele Belmonte

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Abstract

Optimal demodulation of differential phase-shift keying signals at 10 Gbit∕s is experimentally demonstrated using a specially designed structured fiber Bragg grating composed by Fabry–Perot coupled cavities. Bit-error-rate measurements show that, as compared with a conventional Gaussian-shaped filter, our demodulator gives ∼2.8 dB performance improvement.

© 2008 Optical Society of America

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