DocumentCode :
1393988
Title :
Bidirectional 60-GHz RoF System With Multi-Gb/s 
-QAM OFDM Single-Sideband Modulation Based on Injection-Locked Lasers
Author :
Zhang, Cheng ; Duan, Jun ; Hong, Cheng ; Guo, Peng ; Hu, Weiwei ; Chen, Zhangyuan ; Li, Hongbin ; Wu, Hequan
Author_Institution :
Dept. of Electron., Peking Univ., Beijing, China
Volume :
23
Issue :
4
fYear :
2011
Firstpage :
245
Lastpage :
247
Abstract :
We have experimentally demonstrated a 60-GHz bidirectional radio-over-fiber system with single-sideband (SSB) modulation of orthogonal frequency-division-multiplexing (OFDM) signals for the downlink and wavelength reuse for the uplink. A two-carrier-injected distributed-feedback laser is used to realize the OFDM signals´ SSB modulation in the central office for the downlink. In the uplink, the weakly modulated one of the two downlink carriers is filtered out for wavelength reuse. Transmission of 4.3-Gb/s 16-quadrature-amplitude-modulation (QAM) or 3.2-Gb/s 64-QAM OFDM signals on the 60-GHz carrier for the downlink and the 2.5-Gb/s nonreturn-to-zero signal for the uplink are both successfully demonstrated over 56-km standard single-mode fiber without chromatic dispersion compensation.
Keywords :
OFDM modulation; optical links; optical modulation; quadrature amplitude modulation; radio-over-fibre; semiconductor lasers; 16-quadrature amplitude modulation; 64-QAM; M-QAM OFDM single-sideband modulation; OFDM signal; SSB modulation; bidirectional RoF system; bidirectional radio-over-fiber system; downlink carriers; frequency 60 GHz; injection-locked laser; orthogonal frequency division multiplexing signal; two-carrier-injected distributed-feedback laser; Injection-locking; orthogonal frequency-division multiplexing (OFDM); radio-over-fiber (RoF); single-sideband (SSB) modulation;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2010.2096413
Filename :
5657237
Link To Document :
