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1. WO2021004315 - METHOD AND APPARATUS FOR DETECTING OPERATIONAL CONDITIONS OF AN OPTICAL LINK IN AN OPTICAL NETWORK

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Publication Number WO/2021/004315
Publication Date 14.01.2021
International Application No. PCT/CN2020/098802
International Filing Date 29.06.2020
IPC
H04B 10/071 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
071using a reflected signal, e.g. using optical time-domain reflectometers
CPC
G01H 9/004
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
9Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
004using fibre optic sensors
H04B 10/035
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
03Arrangements for fault recovery
035using loopbacks
H04B 10/0779
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
075using an in-service signal
077using a supervisory or additional signal
0779Monitoring line transmitter or line receiver equipment
H04J 14/0212
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0201Add-and-drop multiplexing
0202Arrangements therefor
021Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
0212using optical switches or wavelength selective switches [WSS]
H04J 14/022
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0201Add-and-drop multiplexing
0215Architecture aspects
022For interconnection of WDM optical networks
H04J 14/0275
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0227Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
0254Optical medium access
0272Transmission of OAMP information
0275using an optical service channel
Applicants
  • HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • MANSOURI RAD, Mohammad Mehdi
Priority Data
16/506,57109.07.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DETECTING OPERATIONAL CONDITIONS OF AN OPTICAL LINK IN AN OPTICAL NETWORK
(FR) PROCÉDÉ ET APPAREIL PERMETTANT DE DÉTECTER DES CONDITIONS DE FONCTIONNEMENT D'UNE LIAISON OPTIQUE DANS UN RÉSEAU OPTIQUE
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Abstract
(EN)
There is provided apparatuses to detect occurrence and location of damages on optical fiber links in advance by converting an optical span in optical network to an interferometry based sensing media. The interferometry based sensing media may enable detection of mechanical perturbation or mechanical vibration occurred on optical fiber links across optical network. The system employed with the interferometry based sensing media can detect occurrence of mechanical perturbation or mechanical vibration as well as discover the location of such event occurred using standard interferometry based sensing techniques.
(FR)
La présente invention concerne des appareils permettant de détecter à l'avance l'occurrence et l'emplacement de dommages sur des liaisons de fibres optiques par conversion d'une portée optique d'un réseau optique en un support de détection basée sur l'interférométrie. Le support de détection basée sur l'interférométrie peut permettre la détection d'une perturbation mécanique ou d'une vibration mécanique s'étant produite sur des liaisons de fibres optiques au travers d'un réseau optique. Le système utilisé avec le support de détection à base d'interférométrie peut détecter l'apparition d'une perturbation mécanique ou d'une vibration mécanique et peut également découvrir l'emplacement où un tel événement s'est produit grâce à des techniques de détection basées sur l'interférométrie standard.
Also published as
US20210013962
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