Marhic, Michel E.2; Andrekson, Peter A.3; Petropoulos, Periklis4; Radic, Stojan5; Peucheret, Christophe6; Jazayerifar, Mahmoud7
1 Department of Photonics Engineering, Technical University of Denmark2 Swansea University3 Chalmers University of Technology4 University of Southampton5 San Diego State University6 Systems, Department of Photonics Engineering, Technical University of Denmark7 Technical University of Berlin
The prospects for using fiber optical parametric amplifiers (OPAs) in optical communication systems are reviewed. Phase-insensitive amplifiers (PIAs) and phase-sensitive amplifiers (PSAs) are considered. Low-penalty amplification at/or near 1 Tb/s has been achieved, for both wavelength- and time-division multiplexed formats. High-quality mid-span spectral inversion has been demonstrated at 0.64 Tb/s, avoiding electronic dispersion compensation. All-optical amplitude regeneration of amplitude-modulated signals has been performed, while PSAs have been used to demonstrate phase regeneration of phase-modulated signals. A PSA with 1.1-dB noise figure has been demonstrated, and preliminary wavelength-division multiplexing experiments have been performed with PSAs. 512Gb/s have been transmitted over 6,000km by periodic phase conjugation. Simulations indicate that PIAs could reach data rate x reach products in excess of 14,000 Tb/s x km in realistic wavelength-division multiplexed long-haul networks. Technical challenges remaining to be addressed in order for fiber OPAs to become useful for long-haul communication networks are discussed.
Laser and Photonics Reviews, 2015, Vol 9, Issue 1, p. 50-74