Open Access8 x 120 Gb/s unrepeatered transmission over 444 km (766 dB) using distributed Raman amplification and ROPA without discrete amplification
Author(s) -
Daejun Chang,
Wayne Pelouch,
Pallavi G. Patki,
John T. McLaughlin
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.19.00b971
Subject(s) - raman amplification , optics , transmission (telecommunications) , wavelength division multiplexing , physics , materials science , optical amplifier , laser , computer science , telecommunications , wavelength
Unrepeatered transmission of 8 x 120 Gb/s over 444.2 km (76.6 dB) and multi-rate transmission of 8 x 120 Gb/s and 9 x 10.7 Gb/s over a 75.4 dB span have been demonstrated with off-line digital processing for the coherent 120 Gb/s channels. Transmission of 2 x 120 Gb/s with 7 x 12.5 Gb/s over 78 dB is also demonstrated with a real-time ASIC processor. All transmission results have been achieved using standard effective-area pure-silica-core fiber using forward and backward distributed Raman amplification and remotely-pumped erbium fiber. ASIC real-time processed results match well with off-line processing.