Article ID Journal Published Year Pages File Type
846156 Optik - International Journal for Light and Electron Optics 2014 4 Pages PDF
Abstract

A semiconductor optical amplifier (SOA)-based regenerative amplification (SORA) of differential phase-shift keying (DPSK) signals for satellite application is presented, which has a simple frame and a large regenerative capacity to the small-power signals. The key mechanism of SORA is the discriminative gain provided by the SOA for the marks and spaces colliding in it. Simulation shows that, by using the SORA, the Q-factor improvement of degraded DPSK signals is about 0.7 dB, but it is significantly influenced by both optical confinement factor and gain relaxation time. Considering the satellite vibration, the bit error rate (BER) for the case of SORA can improve more than one order of magnitude compared with the case of no SORA.

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Physical Sciences and Engineering Engineering Engineering (General)
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