Patent ID: 9077484
Filing Date: 2015-07-07
Classification: H04B,H04J

Abstract:
1. A flexible-bit-rate optical DP-QPSK transmitter comprising: a client interface framing module for receiving an input data signal; a binary bit encoder module operable to generate different polarization multiplexed signals; an adaptive FEC encoder module; a multi-tone generation & DeMux module including an RF clock, a Multi-tone generator and a programmable wavelength selective switch; a number of modulators for modulating the FEC encoded signals onto the number of subcarriers produced by the multi-tone generation and demux modulator module; a combiner for combining the modulated signals into an output signal; and a control manager module operable to determine and set bit encoding parameters, the number of subcarriers produced by the multi-tone generation & demux module and FEC coding rate such that the output signal is one selected from standard 10 G, 40 G, and 100 G data.