Open Access112 Gb/s PM-QPSK transmission up to 6000 km with 200 km amplifier spacing and a hybrid fiber span configuration
Author(s) -
John D. Downie,
Jason Hurley,
J.C. Cartledge,
Scott R. Bickham,
Snigdharaj Mishra
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.19.000b96
Subject(s) - span (engineering) , optics , optical amplifier , phase shift keying , raman amplification , wavelength division multiplexing , amplifier , channel spacing , transmission (telecommunications) , channel (broadcasting) , amplified spontaneous emission , optical fiber , physics , materials science , bit error rate , telecommunications , optoelectronics , computer science , engineering , laser , wavelength , civil engineering , cmos
We demonstrate transmission of 112 Gb/s PM-QPSK signals over a system with 200 km span lengths. Amplification is provided by hybrid backward-pumped Raman/EDFA amplifiers and reach lengths up to 6000 km for an 8 channel system and 5400 km for a 32 channel system are shown. As a means of maximizing OSNR, a simple hybrid fiber span configuration is used that combines two ultra-low loss fibers, one having very large effective area.