公开(公告)号：US20180019841A1

公开(公告)日：2018-01-18

申请号：US15626327

申请日：2017-06-19

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya REKAYA BEN-OTHMAN ,  Yves JAOUEN ,  El-Mehdi AMHOUD

IPC: H04L1/00 ,  H04B10/2581 ,  H04L5/00

CPC classification number: H04L1/0065 ,  H04B10/2581 ,  H04B10/516 ,  H04J14/04 ,  H04L1/0054 ,  H04L5/0003

Abstract: 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; and a Space-Time encoder (24) configured to determine a codeword matrix by applying a Space-Time code to said set of modulated symbols.

公开(公告)号：US20180019817A1

公开(公告)日：2018-01-18

申请号：US15651273

申请日：2017-07-17

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya REKAYA BEN-OTHMAN ,  Yves JAOUEN ,  El-Mehdi AMHOUD

IPC: H04B10/2581 ,  H04B10/50 ,  H04B10/60 ,  H04L1/00 ,  H04J14/02 ,  H04J14/04

Abstract: Embodiments of the invention provides a deterministic scrambler (1) arranged in a multimode optical fiber (130) for scrambling light, the light comprising a set of optical signals propagated in said multimode optical fiber according to a set of propagation modes, each propagation mode being associated with a power value, wherein the scrambler is configured to determine a permutation of said propagation modes depending on the power values associated with said propagation modes, the scrambler being configured to redistribute the optical signals according to said permutation of the propagation modes.