Open AccessUltra-long-haul 112 Gb/s PM-QPSK transmission systems using longer spans and Raman amplification
Author(s) -
John D. Downie,
Jason Hurley,
Dragan Pikula,
Xianming Zhu
Publication year - 2012
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.20.010353
Subject(s) - raman amplification , optics , phase shift keying , span (engineering) , transmission (telecommunications) , optical fiber , materials science , channel spacing , wavelength division multiplexing , raman spectroscopy , channel (broadcasting) , physics , raman scattering , bit error rate , telecommunications , wavelength , computer science , civil engineering , engineering
Ultra-long-haul transmission at distances greater than 10,000 km is investigated for 112 Gb/s PM-QPSK signals using span lengths of 75 km and 100 km and all-Raman amplification. Two different ultra-low loss and large effective area optical fibers are studied. We demonstrate a reach length of 10,200 km for a 40 channel system using a fiber with effective area 112 μm(2) with 100 km spans, and a reach length of 13,288 km for a system with 75 km spans using a fiber with effective area of 134 μm(2).