Open Access16×10Gb/s symmetric WDM-FOFDM-PON realization with colorless ONUs
Author(s) -
Cheng Lei,
Hongwei Chen,
Minghua Chen,
Shizhong Xie
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.015275
Subject(s) - wavelength division multiplexing , crosstalk , passive optical network , optical line termination , baseband , optical carrier transmission rates , carrier recovery , transmission (telecommunications) , optics , physics , computer science , wavelength , telecommunications , carrier signal , bandwidth (computing) , radio over fiber
A novel symmetric WDM-PON scheme with colorless ONU is proposed. The baseband 4-ASK Fast-OFDM signal is upconverted by an intermediate frequency carrier, reserving a frequency gap between the FOFDM signal and the optical carrier. After distributing different wavelengths to corresponding ONU by AWG, periodic BPFs are employed to extract the optical carriers for upstream transmission, achieving colorless ONUs. A WDM-PON system with 16 colorless ONUs is established, and 10-Gb/s symmetric transmission for each ONU is also realized. Experiment shows that the system tolerance to the intrachannel crosstalk is greatly improved when the crosstalk signal locates at relatively higher frequency band.