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A Dual-Detector Optical Receiver for WDM PON Utilizing Directly Modulated RSOAs and Delay Interferometers

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1 Author(s)
Hoon Kim ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore

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.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 22 )