Joint space-time and FEC coding in multi-mode fiber optical transmission systems

摘要

Embodiments of the invention provide an optical transmitter configured to transmit a data sequence over at least two spatial propagation modes through an optical transmission channel in a multi-mode optical fiber transmission system, the transmission system being associated with a predefined value of a mode-dependent loss, wherein the optical transmitter comprises:a forward error correcting code encoder (22) configured to encode said data sequence into a codeword vector by applying at least one error correcting code;a modulator (23) configured to determine a set of modulated symbols by applying a modulation scheme to said codeword vector; anda Space-Time encoder (24) configured to determine a codeword matrix by applying a Space-Time code to said set of modulated symbols.