Open AccessDSBCS modulation scheme for hybrid wireless and cable television system
Author(s) -
PengChun Peng,
H. Y. Wang,
Ching-Hung Chang,
Hsuan-Wen Hu,
Wei-Yuan Yang,
Feng-Kai Wu
Publication year - 2014
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.22.001135
Subject(s) - optics , sideband , modulation (music) , phase modulation , beam splitter , physics , telecommunications , electronic engineering , phase noise , computer science , microwave , acoustics , engineering , laser
This work develops and demonstrates a double sideband with optical carrier suppression (DSBCS) modulation scheme for a hybrid wireless and cable television system based on a phase modulator (PM) and a polarization beam splitter (PBS). A carrier suppression ratio greater than 20 dB is achieved between two sidebands. In addition, the values of carrier-to-noise ratio, composite second-order and composite triple beat in various channels after 25 km of transmission are higher than the threshold value, and the power penalty of microwave signal in back-to-back and 25 km transmission perform well. Additionally, the constellation diagram of upstream signal is successfully recovered. Above results demonstrate that the proposed scheme is highly promising for practical applications.