Abstract
We propose and demonstrate a dual-detector optical receiver for directly modulated reflective semiconductor optical amplifier (RSOA)-based transmitters employing a delay interferometer as an optical equalizer at the receiver. We show through experiment that the dual-detector receiver not only improves the receiver sensitivity but also lowers the error floor by widening the eye opening at the receiver. We also demonstrate upstream transmission of a 10-Gb/s RSOA signal over a 40-km single-fiber loopback configured network.
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