Article ID Journal Published Year Pages File Type
1536579 Optics Communications 2012 6 Pages PDF
Abstract

A phase-sensitive-amplifier (PSA) using only one pump channel based on frequency non-degenerate four-wave-mixing (FWM) process for phase-shift-keying (PSK) signals is proposed and demonstrated. Theoretical analyses are given first. By optimizing power levels of three channels and parameters of the highly nonlinear fiber (HNLF), the PSA is able to restore the signal fidelity (down to a BER of 10− 9) as the input signal shows an error-floor with the BER of 10− 6. Moreover, the PSA for the multi-level PSK signals could be achieved by adjusting the phase relationship between two input signals.

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Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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