Open AccessFull-duplex lightwave transport systems employing phase-modulated RoF and intensity-remodulated CATV signals
Author(s) -
Chung-Yi Cy Li,
Heng-Sheng Su,
Chia-Yi Cy Chen,
HaiHan Lu,
Hwan-Wen Hw Chen,
Ching-Hung Chang,
Chang-Han Jiang
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.014000
Subject(s) - compatible sideband transmission , optics , sideband , phase modulation , radio over fiber , modulation (music) , transmission (telecommunications) , optical fiber , phase noise , modulation index , intensity modulation , telecommunications , physics , computer science , radio frequency , acoustics , pulse width modulation , voltage , quantum mechanics
A full-duplex lightwave transport system employing phase-modulated radio-over-fiber (RoF) and intensity-remodulated CATV signals in two-way transmission is proposed and experimentally demonstrated. The transmission performances of RoF and CATV signals are investigated in bidirectional way, with the assistance of only one optical sideband and optical single sideband (SSB) schemes at the receiving sites. The experimental results show that the limitation on the optical modulation index (OMI) of the downlink RoF signal can be relaxed due to the constant intensity of phase modulation scheme. Impressive transmission performances of bit error rate (BER), carrier-to-noise ratio (CNR), composite second-order (CSO), and composite triple-beat (CTB) were obtained over two 20-km single-mode fiber (SMF) links. This proposed system reveals an outstanding one with economy and convenience to be installed.