1.14Tb/s DP-QPSK WDM polarization-diverse optical phase conjugation

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Optical phase conjugation (OPC) of a polarization-multiplexed comb of 10x114Gb/s DP-QPSK signals has been demonstrated for the first time, occupying a spectral bandwidth of >1THz (~9nm). The nonlinear element employed for the OPC was highly nonlinear fiber (HNLF) optimized for the suppression of stimulated Brillouin scattering (SBS) and configured in a bi-directional loop offering polarization diversity. Pump power (each way about the loop) and input signal power to the OPC subsystem were optimized at 29.7dBm and + 3dBm respectively producing a Q2 penalty of ≤0.9dB over all conjugate wavelengths, polarizations and output OSNR (up to 20dB).
Original languageEnglish
Pages (from-to)11840-11848
Number of pages9
JournalOptics Express
Issue number10
Early online date8 May 2014
Publication statusPublished - 19 May 2014

Bibliographical note

© 2014 Optical Society of America
This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-10-11840. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Funding: UK EPSRC [EP/J017582/1, EP/J009709/2]


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