Open AccessExperimental demonstration of 24-Gb/s CAP-64QAM radio-over-fiber system over 40-GHz mm-wave fiber-wireless transmission
Author(s) -
Junwen Zhang,
Jianjun Yu,
Nan Chi,
Fan Li,
Xinying Li
Publication year - 2013
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.21.026888
Subject(s) - quadrature amplitude modulation , radio over fiber , modulation (music) , optics , amplitude modulation , transmission (telecommunications) , qam , optical fiber , phase modulation , materials science , telecommunications , frequency modulation , physics , radio frequency , phase noise , computer science , channel (broadcasting) , acoustics , bit error rate
We propose and demonstrate a novel CAP-ROF system based on multi-level carrier-less amplitude and phase modulation (CAP) 64QAM with high spectrum efficiency for mm-wave fiber-wireless transmission. The performance of novel CAP modulation with high order QAM, for the first time, is investigated in the mm-wave fiber-wireless transmission system. One I/Q modulator is used for mm-wave generation and base-band signal modulation based on optical carrier suppression (OCS) and intensity modulation. Finally, we demonstrated a 24-Gb/s CAP-64QAM radio-over-fiber (ROF) system over 40-km stand single-mode-fiber (SMMF) and 1.5-m 38-GHz wireless transmission. The system operation factors are also experimentally investigated.