We demonstrate a 120 Gb/s coherent polarization- multiplexed quadrature-phase-shift-keyed transceiver with soft-decision forward-error-correction (SD-FEC) coding based on Turbo Product Code. This industry-first transceiver module utilizes a 40 nm complementary metal-oxide semiconductor (CMOS) application-specific integrated circuit with integrated analog-to-digital conversion, digital signal processing and SD-FEC, and is packaged according to a multi-source agreement from the Optical Internetworking Forum. Through several long-haul and ultra-long-haul system experiments (over 1000 km to 3760 km), we validate the robustness of the transceiver and demonstrate its high tolerance to various system impairments, including fiber nonlinearity, chromatic dispersion up to 60,000 ps/nm, polarization mode dispersion, polarization-dependent loss, polarization transients and multiple-path interference.
© 2012 OSA
Original Manuscript: July 20, 2012
Revised Manuscript: September 21, 2012
Manuscript Accepted: September 21, 2012
Published: October 29, 2012
Lynn E. Nelson, Guodong Zhang, Martin Birk, Craig Skolnick, Rejoy Isaac, Y. Pan, Christian Rasmussen, Graeme Pendock, and Benny Mikkelsen, "A Robust Real-Time 100G Transceiver With Soft-Decision Forward Error Correction [Invited]," J. Opt. Commun. Netw. 4, B131-B141 (2012)