公开(公告)号：US20190128820A1

公开(公告)日：2019-05-02

申请号：US16092825

申请日：2017-06-01

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

Inventor： Lutz RAPP

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

CPC classification number: G01N21/94 ,  B01D46/0086 ,  B01D2273/18 ,  B01D2273/26 ,  G01N21/956 ,  G01N21/95607 ,  G01N21/95692 ,  H05K7/20181 ,  H05K7/20563

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：US20200304208A1

公开(公告)日：2020-09-24

申请号：US16087870

申请日：2017-04-13

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

Inventor： Lutz RAPP ,  Nelson COSTA

IPC: H04B10/291 ,  H01S3/067 ,  H01S3/094 ,  H01S3/16 ,  H01S3/23

Abstract: The invention discloses a method of amplifying an optical signal, in particular a data signal, transmitted from a first location (A) to a second location (B) via a first transmission link (10a), wherein said optical signal is amplified by means of a transmitter side remote optically pumped amplifiers (ROPA) (18) comprising a gain medium (24), wherein the gain medium (24) of said transmitter side ROPA (18) is pumped by means of transmitter side pump power (20) provided from said first location (A), characterized in that at least a part of said transmitter side pump power (20) is provided by means of light supplied from said first location (A) to said transmitter side ROPA (18) via a portion of a second transmission link (10b) provided for transmitting optical signals from said second location (B) to said first location (A).

公开(公告)号：US20190128775A1

公开(公告)日：2019-05-02

申请号：US16093038

申请日：2017-05-24

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

Inventor： Lutz RAPP ,  Nuno Renato DUARTE PEREIRA

IPC: G01M11/00

Abstract: A method for determining the position of an irregularity in an optical transmission fiber using an optical time domain reflectometer, the method comprising the steps of emitting a succession of sampling light pulses into the optical transmission fiber, detecting reflected light pulses resulting from the reflection of the sampling light pulses at the irregularity in the optical transmission fiber and generating corresponding time-dependent detection signals, wherein different delays are associated with detection signals corresponding to different sampling light pulses, obtaining a combined signal from the detection signals, and analyzing the combined signal for determining the position of the irregularity in the optical transmission fiber with respect to the optical time domain reflectometer, wherein the combined signal corresponds to a super-position of the detection signals.

公开(公告)号：US20190097726A1

公开(公告)日：2019-03-28

申请号：US16081594

申请日：2017-03-09

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

Inventor： Tiago MESTRE ,  Carlo MARQUES ,  Anton SCHEX ,  Lutz RAPP

IPC: H04B10/291 ,  H01S3/30 ,  H01S3/067 ,  H01S3/094 ,  H01S3/131

Abstract: A Raman pumping device (10) for amplifying a data optical signal in a fiber optic transmission system, comprising first and second ports (12a, 12b) through which the data optical signal may respectively enter and exit the Raman pumping device (10), a Raman pump source (14) for generating a Raman pump signal, and at least one combiner (16) for combining the Raman pump signal with the data optical signal. The Raman pumping device (10) allows for selectively combining the Raman pump signal generated by the same Raman pump source (14), or at least parts of the same Raman pump source (14) codirectionally or counterdirectionally with the data optical signal.

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：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：US20170331555A1

公开(公告)日：2017-11-16

申请号：US15606492

申请日：2017-05-26

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

Inventor： Lutz RAPP

IPC: 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.

公开(公告)号：US20170294757A1

公开(公告)日：2017-10-12

申请号：US15512728

申请日：2015-08-21

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

Inventor： Lutz RAPP

IPC: H01S3/067 ,  H01S3/10 ,  H01S3/13 ,  H01S3/094

CPC classification number: H01S3/06758 ,  H01S3/067 ,  H01S3/06754 ,  H01S3/094011 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/10 ,  H01S3/10015 ,  H01S3/13 ,  H01S3/1301 ,  H01S3/1608 ,  H04B10/296

Abstract: Disclosed is a method of Controlling a gain of an optical amplifier comprising a gain medium and at least one pumping device. The method comprises the following steps: determining or predicting a change of input signal power to the amplifier, changing the pump power from an initial pump power level to a new pump power level at a first time instant, the initial pump power level being the pump power level applied to the amplifier prior to the change in input signal power, setting the pump power to a second pump power level at a second time instant, wherein the pump power level is varied in an oscillatory manner for at least one period of time starting at a third time instant and ending at a fourth time instant, wherein said third time instant is identical with or later than said first time instant and said fourth time instant is identical with or earlier than said second time instant.