Open AccessFull-duplex bidirectional transmission of 10-Gb/s millimeter-wave QPSK signal in E-band optical wireless link
Author(s) -
Yuan Fang,
Jianjun Yu,
Nan Chi,
Jiangnan Xiao
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.22.001229
Subject(s) - phase shift keying , physics , optics , transmission (telecommunications) , keying , extremely high frequency , wireless , photonics , telecommunications link , electronic engineering , telecommunications , bit error rate , computer science , engineering , channel (broadcasting)
We experimentally demonstrated full-duplex bidirectional transmission of 10-Gb/s millimeter-wave (mm-wave) quadrature phase shift keying (QPSK) signal in E-band (71-76 GHz and 81-86 GHz) optical wireless link. Single-mode fibers (SMF) are connected at both sides of the antenna for uplink and downlink which realize 40-km SMF and 2-m wireless link for bidirectional transmission simultaneously. We utilized multi-level modulation format and coherent detection in such E-band optical wireless link for the first time. Mm-wave QPSK signal is generated by photonic technique to increase spectrum efficiency and received signal is coherently detected to improve receiver sensitivity. After the coherent detection, digital signal processing is utilized to compensate impairments of devices and transmission link.