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Ultra-Narrow-Spacing 10-Channel 1.12 Tb/sD-WDM Long-Haul Transmission Over Uncompensated SMF and NZDSF

Gavioli, G; Torrengo, E; Bosco, G; Carena, A; Savory, SJ; Forghieri, F; Poggiolini, P; (2010) Ultra-Narrow-Spacing 10-Channel 1.12 Tb/sD-WDM Long-Haul Transmission Over Uncompensated SMF and NZDSF. IEEE PHOTONIC TECH L , 22 (19) 1419 - 1421. 10.1109/LPT.2010.2062174.

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Abstract

We experimentally investigate the transmission of a 1.12-Tb/s Dense-WDM (D-WDM) system comprising 10 x 112 Gb/s polarization-multiplexed quadrature phase-shift-keying channels with ultra-narrow spacing (1.1 times the Baud rate). The D-WDM signal is generated by means of a recirculating frequency shifter. We used narrow optical filtering of channels at the transmitter to reduce interchannel crosstalk. With 100-km uncompensated spans and EDFA amplification, we reached 800 km over nonzero dispersion-shifted fiber (NZDSF) and 2300 km over standard single-mode fiber, at BER = 3.10(-3). By simulation, we also investigated transmission over large-effective area NZDSF fiber (LEAF) and pure silica-core fiber (PSCF). We found that the D-WDM channel should achieve a 40% longer reach with LEAF than with NZDSF and a 45% longer reach with PSCF than with standard single-mode fiber.

Type:Article
Title:Ultra-Narrow-Spacing 10-Channel 1.12 Tb/sD-WDM Long-Haul Transmission Over Uncompensated SMF and NZDSF
DOI:10.1109/LPT.2010.2062174
Keywords:Coherent detection, DP-QPSK, optical transmission, PDM-QPSK, polarization-multiplexed quadrature phase-shift-keying (PM-QPSK), recirculating frequency shifter (RFS), terabit superchannel, QPSK
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

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