Open AccessField trial of distance-adaptive optical transmission with digital in-band OSNR estimation
Author(s) -
Seiji Okamoto,
Fukutaro Hamaoka,
Yoshiaki Kisaka
Publication year - 2016
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.24.022403
Subject(s) - transmission (telecommunications) , computer science , optics , modulation (music) , multiplexing , quadrature amplitude modulation , channel (broadcasting) , wavelength division multiplexing , phase shift keying , transmission system , channel spacing , electronic engineering , signal to noise ratio (imaging) , intensity modulation , bit error rate , telecommunications , physics , phase noise , phase modulation , engineering , acoustics , wavelength
We present a feasible distance-adaptive optical transmission system that selects the optimum modulation format by referencing the estimated optical signal to noise ratio (OSNR) information transmitted from an opposing transceiver via a feedback channel. A modulation format free time-domain-multiplexed pilot sequence enables OSNR estimation and feedback channel transmission. Thanks to a feedback channel transmission, this system does not need to pass through a control plane in optimizing scheme. Using this system, we demonstrated 106.6 Gb/s QPSK and 213.3 Gb/s 16 QAM distance-adaptive optical transmission in a fully automatic manner in a field-installed fiber of 70.4 to 211.2 km.