Title :
A Dual-Detector Optical Receiver for WDM PON Utilizing Directly Modulated RSOAs and Delay Interferometers
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
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.
Keywords :
equalisers; light interferometers; optical modulation; optical receivers; optical transmitters; passive optical networks; photodetectors; semiconductor optical amplifiers; wavelength division multiplexing; RSOA based transmitter; WDM PON; bit rate 10 Gbit/s; delay interferometer; directly modulated RSOA; directly modulated reflective semiconductor optical amplifier; distance 40 km; dual detector optical receiver; optical equalizer; single fiber loopback configured network; Adaptive optics; Bit error rate; Detectors; Optical receivers; Passive optical networks; Wavelength division multiplexing; Chirp modulation; optical receivers; passive optical network (PON); semiconductor optical amplifier (SOA); wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2169050
