公开(公告)号：US11800264B2

公开(公告)日：2023-10-24

申请号：US16969871

申请日：2019-02-14

Applicant: Orange

Inventor： Bing Han ,  Paulette Gavignet ,  Erwan Pincemin

IPC: H04J14/00 ,  H04Q11/00 ,  H04J14/02 ,  H04Q11/04

CPC classification number: H04Q11/0066 ,  H04J14/0298 ,  H04Q11/0435 ,  H04Q2011/0033

Abstract: A system for sending data in an optical network comprising a plurality of source nodes and destination nodes is disclosed. In one aspect, a source node generates, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and sends it in the form of single-band data bursts that can be associated with distinct source wavelengths. A single-band data burst comprises, in addition to payload data symbols (PL), a sequence of learning symbols (TS) composed of a plurality of learning symbols. A control unit belonging to the control plane of the optical network determines, for at least one of the source nodes, instants of sending of the single-band data bursts and source wavelengths to be used for sending these single-band data bursts, as a function of a path time of the data bursts between the source node and one of the destination nodes associated with the source wavelength. The control unit also determines the size of the sequence of learning symbols (TS) of the single-band data bursts.

公开(公告)号：US20190253174A1

公开(公告)日：2019-08-15

申请号：US16333426

申请日：2017-09-14

Applicant: Orange

Inventor： Erwan Pincemin ,  Yann Loussouarn

IPC: H04J14/02 ,  H04B10/516

CPC classification number: H04J14/0227 ,  H04B10/516 ,  H04J14/0221

Abstract: A load-controlling device controlling load on an optical transmission line, the input of which is coupled to an emitting device for modulating with data and multiplexing a plurality of useful wavelengths into a useful optical signal to be transmitted over the transmission line. The load-controlling device includes elements for generating a filler optical signal composed of at least one filler wavelength that is not modulated by data, to be injected into the optical transmission line. The generating elements generate a source optical signal composed of a plurality of wavelengths corresponding to the plurality of wavelengths of the useful optical signal and selects the wavelength of the filler optical signal among the wavelengths of the source optical signal. A control module controls selection of the wavelength of the filler optical signal depending on information indicative of non-turn-on of a wavelength among the plurality of wavelengths of the useful optical signal.

公开(公告)号：US09621277B2

公开(公告)日：2017-04-11

申请号：US14591672

申请日：2015-01-07

Applicant: Orange

Inventor： Mengdi Song ,  Erwan Pincemin

IPC: H04B10/58 ,  H04J14/02 ,  H04L27/26 ,  H04L27/36

CPC classification number: H04B10/58 ,  H04J14/02 ,  H04J14/0221 ,  H04J14/0298 ,  H04L27/2634 ,  H04L27/2697 ,  H04L27/368

Abstract: A method is provided for pre-distorting an optical signal, intended to be transmitted over an optical transmission line and including a plurality of frequency division multiplexed optical sub-carriers. The optical signal is obtained from an optical conversion of an electrical signal including a plurality of frequency division multiplexed sub-carriers. This method includes obtaining a plurality of corrective factors, corresponding to the electrical sub-carriers, as a function of a plurality of values, determined for the optical sub-carriers, of a first parameter dependent on the power of the sub-carriers, and application of the corrective factors to the amplitudes of the corresponding electrical sub-carriers, so as to equalize, at the output of the optical transmission line, the values of the first parameter for the sub-carriers of the optical signal.