公开(公告)号：US20220140904A1

公开(公告)日：2022-05-05

申请号：US17310913

申请日：2020-02-25

Applicant: Xieon Networks S.A.R.L.

Inventor： Lutz RAPP

IPC: H04B10/2543 ,  H04B10/071 ,  H04B10/2507 ,  H04B10/2531 ,  H04B10/61 ,  H04B10/69

Abstract: The disclosure relates to a method, an optical receiver and an optical system for compensating, at an optical receiver, signal distortions induced in an optical carrier signal by a periodic copropagating optical signal, wherein the optical carrier signal and the copropagating signal copropagate at least in part of an optical system or network, by: receiving, at the optical receiver, the optical carrier signal, wherein the optical carrier signal is distorted by the copropagating signal; determining, at the optical receiver, a period of a periodic component of the distorted optical carrier signal; determining, at the optical receiver, a periodic distortion of the distorted optical carrier signal; and generating a compensation signal to correct the distorted optical carrier signal according to the determined periodic distortion.

公开(公告)号：US20210203415A1

公开(公告)日：2021-07-01

申请号：US16070139

申请日：2018-03-19

Applicant: Xieon Networks S.a.r.l.

Inventor： Juraj SLOVAK ,  Wolfgang SCHAIRER ,  Maximilian HERRMANN ,  Enrico TORRENGO

IPC: H04B10/079

Abstract: A method of determining contributions of different sources of signal degradation for optical signals transmitted over an optical link in an optical transmission system, comprising measuring a performance value (P) of a signal transmission on said optical link, deriving, from the performance value, an auxiliary noise power value (PN) based on a predetermined relationship between the performance value (P) and the auxiliary noise power value (PN), wherein the auxiliary noise power value (PN) comprises contributions of amplified spontaneous emission power (PA) generated on the optical link and a link-related equivalent noise power contributions (PL) representing other sources of signal degradation upon transmission on the optical link, measuring or deriving an OSNR-related value (Q) for the signal transmission on the optical link, wherein the OSNR-related value (Q) corresponds to or is at least indicative of an actual OSNR on the optical link, and distinguishing, based on the auxiliary noise power value (PN) and on the OSNR-related value (Q) between noise power contributions of amplified spontaneous emission and link-related equivalent noise power contributions.

公开(公告)号：US20210109294A1

公开(公告)日：2021-04-15

申请号：US16598908

申请日：2019-10-10

Applicant: Xieon Networks S.a.r.l.

Inventor： Carlo Miguel Fernandes MARQUES ,  Carlos António Lopes ANTUNES ,  Paola FRASCELLA

IPC: G02B6/38

Abstract: The disclosed receptacle and method of the present invention enables light, such as port status/operation indicator light for example, to pass through at least a portion of the receptacle, and in turn illuminate at least a portion of the receptacle. In one example application or embodiment the light that so illuminates the receptacle originates from a light source that is external to the receptacle, while in another example application or embodiment the light originates from a light source within the receptacle.

公开(公告)号：US20210021338A1

公开(公告)日：2021-01-21

申请号：US17040002

申请日：2019-02-05

Applicant: Xieon Networks S.A.R.L.

Inventor： Stefano CALABRÒ ,  Lutz RAPP ,  Bernhard SPINNLER

IPC: H04B10/079 ,  H04B10/40 ,  H04B10/61 ,  H04B10/50

Abstract: Disclosed herein is a transponder (14), comprising a transmitter (18) for generating and transmitting an optical signal and a receiver (20), wherein said receiver (20) comprises a receiver input amplifier (40) at the receiver's input. The transponder further comprises a bypass line (46) configured to selectively feed an optical signal from said transmitter (18) to the receiver (20), and a control unit (22) configured for determining the performance of the transponder (14) in relation to an OSNR related parameter, by controlling the transponder to generate a noise signal to be received by the receiver (20), by operating the receiver input amplifier (40) to thereby cause ASE in the receiver input amplifier (40) and to determine a noise intensity value, generate a test signal at the transmitter (18) and to determine a signal intensity value and superimpose said noise signal and said test signal, or replicas thereof, to form a combined signal to be received by said receiver (20) and determining said performance related parameter based on said combined signal, wherein for generating said combined signal, said test signal is fed from the transmitter (18) to the receiver by means of said bypass line (46).

公开(公告)号：US10775318B2

公开(公告)日：2020-09-15

申请号：US16092825

申请日：2017-06-01

Applicant: Xieon Networks S.à.r.l.

Inventor： Lutz Rapp

IPC: G01N21/94 ,  B01D46/00 ,  H05K7/20 ,  G01N21/956

Abstract: A system (10) for detecting a level of dirtiness of a filter mat (20) of an airflow cooling system for telecommunications equipment, the system (10) comprising a detector (12) for detecting fluorescent or reflected light backscattered at at least one part in (22) of the filter mat (20) comprising or treated with a fluorescent or reflective material, wherein the detector (12) comprises a light source (12a) for illuminating said at least one part (22) of the filter mat (20) with sampling light, and a photosensor (12b) for detecting fluorescent or reflected light backscattered at said at least one part (22) of the filter mat (20) caused by the illumination thereof with sampling light, wherein the system (10) is configured for inferring the level of dirtiness of the filter mat (20) from the amount of detected fluorescent or reflected light.

公开(公告)号：US10181904B2

公开(公告)日：2019-01-15

申请号：US15507120

申请日：2015-07-09

Applicant: Xieon Networks S.à.r.l.

Inventor： Miguel Drummond ,  Bernhard Spinnler ,  Stefano Calabro

IPC: H04B10/2507 ,  H04B10/69 ,  H04B10/2513

Abstract: The present invention relates to performing chromatic dispersion estimation in a receiver of an optical communication system. Here, the signal received by the receiver includes frames, each comprising a training portion and a data portion. The training portion comprises a plurality of identical pattern sequences. Different settings are applied to an equalizer to generate a plurality of equalized signals from at least one of the received frames. Then, at least one correlation value is calculated between a first pattern sequence and a second pattern sequence of the equalized signals and a final correlation value is derived from the respective correlation values. The setting of the equalizer corresponding to the equalized signal providing the highest final correlation value is selected to provide the chromatic dispersion estimation.

公开(公告)号：US10050732B2

公开(公告)日：2018-08-14

申请号：US13505643

申请日：2009-11-02

Applicant: Thomas Treyer ,  Karl Kloppe

Inventor： Thomas Treyer ,  Karl Kloppe

IPC: H04B10/08 ,  H04J3/16 ,  H04J14/02

Abstract: A method and a device are provided for processing data in an optical network. The method includes the steps of events of a login scan are recorded by a first optical network element; the events are conveyed to a second optical network element; and the events are processed by the second optical network element. A communication system is described that includes the device.

公开(公告)号：US10038516B2

公开(公告)日：2018-07-31

申请号：US15529027

申请日：2015-12-02

Applicant: Xieon Networks S.à.r.l.

Inventor： Stefano Calabro ,  Bernhard Spinnler

IPC: H04B10/00 ,  H04J14/06 ,  G02F1/225 ,  H04B10/50 ,  G02F1/21

CPC classification number: H04J14/06 ,  G02F1/0123 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2203/07 ,  H04B10/5053 ,  H04B10/50572

Abstract: Disclosed herein is a modulator (50) for polarization-division multiplexing (PDM) transmission. The modulator (50) comprises first and second DP-MZMs (12, 28) associated with first and second polarizations, each DP-MZM (12, 28) having an input for an in-phase and a quadrature driving signal for modulating the in-phase and quadrature components of an optical signal according to respective transfer functions, and a detector (58) suitable for detecting light comprising at least a portion of the light outputted by the first DP-MZM (12) and a portion of the light outputted by the second DP-MZM (28). The modulator (50) is adapted to superimpose a first pilot signal on one of the in-phase and quadrature driving signals of the first DP-MZM (12) and on one of the in-phase and quadrature driving signals of the second DP-MZM (28), and a second pilot signal on the respective other of the in-phase and quadrature driving signals of the first and second DP-MZMs (12, 28). Further, the first and second pilot signals are chosen such that the signal detected by said detector (58) is indicative as to whether the slopes of the transfer functions are different for the in-phase and quadrature components of one of the first and second DP-MZMs (12, 28) and identical for the other of the first and second DP-MZMs (12, 28).

公开(公告)号：US09998362B2

公开(公告)日：2018-06-12

申请号：US15025071

申请日：2013-10-11

Applicant: Xieon Networks S.a.r.l.

Inventor： Kaiyuan Huang

IPC: H04L12/703 ,  H04L12/717 ,  H04L12/721 ,  H04L12/715

CPC classification number: H04L45/28 ,  H04L45/42 ,  H04L45/44 ,  H04L45/62 ,  H04L45/64

Abstract: A communication network has a plurality of network elements (NEs) and links between the NEs. A method includes computing, at a central controller, a data path from the source NE to the destination NE along a number of intermediate NEs, sending, from the central controller, central control messages to all or at least a plurality of NEs among the source NE, the intermediate NEs and the destination NE, the central control messages including explicit path information, the explicit path information in at last some of the central control messages comprising more information than needed by the recipient NE for its set-up for data transport along the path, and sending distributed control messages between NEs of the path, the distributed control messages being based on at least one central control message received by one of the NEs.

公开(公告)号：US09712242B2

公开(公告)日：2017-07-18

申请号：US14401622

申请日：2013-07-04

Applicant: Xieon Networks S.a.r.l.

Inventor： Lutz Rapp

IPC: H04B10/27 ,  H04J14/04 ,  H04B10/12 ,  H04J14/00 ,  H04B10/2581

CPC classification number: H04B10/27 ,  H04B10/2581 ,  H04J14/00 ,  H04J14/04

Abstract: An optical network is suggested, comprising a first set of optical fibers, a multimode multiplexer, a multimode amplifier, a multimode demultiplexer, and a second set of optical fibers, wherein the first set of optical fibers is connected via the multimode multiplexer to the multimode amplifier and wherein the multimode amplifier is connected via the multimode demultiplexer to the second set of optical fibers. Accordingly, an optical network element is provided.