We have proposed a novel scheme based on chirped fiber Bragg grating (CFBG) as a narroeband optical filter demodulator and a maximum likelhood sequence estimation (MLSE) receiver to attain an enhanced unrepeatered reach in a nonreturn-to-zero differential phase-shift-keying (NRZ-DPSK) transmission link. An extended reach up to 500 km with only 2-db optical signal-to-noise ratio penalty is found feasible for a 10.7-Gb/s NRZ-DPSK link with the CFBG-MLSE combination.
Reach Extension of a DPSK Optical Link Using an Optical Filter Demodulator and MLSE Receiver
PRATI, Giancarlo
2008-01-01
Abstract
We have proposed a novel scheme based on chirped fiber Bragg grating (CFBG) as a narroeband optical filter demodulator and a maximum likelhood sequence estimation (MLSE) receiver to attain an enhanced unrepeatered reach in a nonreturn-to-zero differential phase-shift-keying (NRZ-DPSK) transmission link. An extended reach up to 500 km with only 2-db optical signal-to-noise ratio penalty is found feasible for a 10.7-Gb/s NRZ-DPSK link with the CFBG-MLSE combination.File in questo prodotto:
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