Title :
Maximum Reach Versus Transmission Capacity for Terabit Superchannels Based on 27.75-GBaud PM-QPSK, PM-8QAM, or PM-16QAM
Author :
Carena, Andrea ; Curri, Vittorio ; Poggiolini, Pierluigi ; Bosco, Gabriella ; Forghieri, Fabrizio
Author_Institution :
Dipt. di Elettron., Politec. di Torino, Torino, Italy
fDate :
6/1/2010 12:00:00 AM
Abstract :
The performance of future terabit superchannels implemented using polarization-multiplexed quadrature phase-shift-keying (PM-QPSK) and polarization-multiplexed quadrature amplitude modulation based on 8 and 16 (PM-16QAM) signal points is investigated through simulations in order to assess the maximum reach for different spectral efficiencies, considering linear filtering penalties and nonlinear propagation over uncompensated standard single-mode fiber with erbium-doped fiber amplification and span loss of 25 dB. We find that PM-QPSK can reach 2400 km at a net capacity of 14 Tb/s across the C -band. Conversely, PM-16QAM can deliver 27 Tb/s, but over 300 km only.
Keywords :
channel capacity; erbium; optical fibres; quadrature amplitude modulation; quadrature phase shift keying; C -band; Er; PM-16QAM; PM-8QAM; PM-QPSK; bit rate 14 Tbit/s; bit rate 27 Tbit/s; bit rate 27.75 Gbit/s; distance 2400 km; distance 300 km; erbium-doped fiber amplification; linear filtering; loss 25 dB; nonlinear propagation; polarization-multiplexed quadrature amplitude modulation; polarization-multiplexed quadrature phase-shift-keying; terabit superchannel transmission capacity; uncompensated standard single-mode fiber; Coherent detection; PDM quadrature phase-shift keying (PDM-QPSK); PDM-16QAM; PM-16QAM; PM-QPSK; polarization-division- multiplexing eight quadrature amplitude modulation (PDM-8QAM); polarization-multiplexed 8QAM (PM-8QAM); superchannel;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2045753
