Journal of Lightwave Technology, vol. 27, No. 16, August 15, 2009.Abstract—The emergence of capable semiconductor processes
has allowed digital signal processing to extend the application
range of high-capacity optical systems. We report the performance
of polarization multiplexed (or dual-polarization) quadrature
phase-shift keying at 40 and 100 Gb/s.Index Terms—Electronic signal processing, optical coherent
transceiver, polarization multiplexing, quadrature phase-shift
keying (QPSK).
