This paper reports on the field transmission of N × 170-Gb/s over high-loss fiber links using third-order distributed Raman amplification (DRA) in a commercially operated network of Deutsche Telekom. It gives an overview of the key technologies applied for the realization of an 8 × 170 Gb/s (1.28 Tb/s) dense wavelength division multiplexing (DWDM) system demonstrator and summarizes long-haul transmission experiments with terabit-per-second capacity over European fiber infrastructure. Third-order DRA enabled repeaterless transmission of 1 × 170 Gb/s and 8 × 170 Gb/s over links of 185-and 140-km field fiber, respectively. Including an additional 25 km of lumped standard single-mode fiber (SSMF) at the end of the span, a total loss of 61 and 44 dB, respectively, was bridged.
© 2006 IEEE
Malte Schneiders, Sascha Vorbeck, Ralph Leppla, Eugen Lach, Michael Schmidt, Serguei B. Papernyi, and Kris Sanapi, "Field Transmission of 8 × 170 Gb/s Over High-Loss SSMF Link Using Third-Order Distributed Raman Amplification," J. Lightwave Technol. 24, 175- (2006)