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WO/2021/185462A1 |
An add-drop network element (100) for an optical communications network. The add-drop network element comprises an optical amplifier (102) having an input port and an output port. The add-drop network element comprises also comprises an ...
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WO/2021/185066A1 |
Disclosed in embodiments of the present invention are a method for calibrating an insertion loss and a related device. The embodiments of the present invention can effectively improve the calibration efficiency and accuracy of the insert...
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WO/2021/179793A1 |
Disclosed in the embodiments of the present application is a device for generating a dummy light signal, which is used for reducing the cost of generating dummy light signals. The device specifically comprises a multi-longitudinal-mode l...
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WO/2021/181568A1 |
An optical reception device comprising: a chromatic dispersion compensation unit that subjects each received signal to chromatic dispersion compensation, said received signals being obtained by using a coherent detection method to receiv...
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WO/2021/184042A1 |
Aspects described herein include an optical apparatus comprising an input port configured to receive an optical signal comprising a plurality of wavelengths, and a plurality of output ports. Each output port is configured to output a res...
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WO/2021/181601A1 |
An optical communication device (100) comprises: a WDM optical transmission/reception unit (160) which, upon receiving an optical signal, converts the optical signal into an electric signal; an MUX/DEMUX unit (140) which converts the con...
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WO/2021/182141A1 |
In a case where a failure occurs in a part of an optical fiber in an optical cable, when attempting to switch to a redundant configuration, the stable use of an optical transmission system is impaired, so that the wavelength band cannot ...
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WO/2021/183443A1 |
Embodiments of the present disclosure include a pluggable optical line system module for amplification, multiplexing, and demultiplexing of coherent optical signals that can be integrated with a switch-router. Integration may include mec...
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WO/2021/176497A1 |
A wavelength multiplex communication system according to the present invention has a master station device and multiple slave station devices. The master station device comprises a wavelength multiplex communication unit that uses optica...
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WO/2021/177309A1 |
Provided is a monitor signal output device capable of transmitting monitor signal light by means of a simple configuration. An optical demultiplexer (11) is inserted into an optical fiber (F1) and demultiplexes monitor signal light (M1) ...
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WO/2021/175206A1 |
Provided by the present application are a method for configuring spectrum resources, a network device and a system. The method comprises: a network device determines spectrum resources used by a channel to be turned on, wherein the spect...
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WO/2021/176743A1 |
The present invention provides an optical buffer unit provided with: a plurality of delay line units that confer delays to an optical signal; and a switch to which an optical signal output from one of the delay line units is input, that ...
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WO/2021/175305A1 |
A reconfigurable optical add-drop multiplexer, comprising: an optical fiber, X first wavelength selective switches, and Y upper/lower wave modules. The X first wavelength selective switches correspond to W directions, both X and W being ...
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WO/2021/176578A1 |
This optical communication system, in which a station-side device and multiple subscriber-side devices are structured according to a bus network topology, comprises an optical amplification unit installed on a station side and a drop uni...
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WO/2021/176923A1 |
In order to readily carry out communication between terminal stations, a submarine optical communication system according to the present invention is provided with: a submarine cable accommodating first, second, and third transmission li...
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WO/2021/176496A1 |
This wavelength division multiplexing communication system comprises a master station device and a plurality of slave station devices. The master station device includes a wavelength division multiplexing communication unit. The waveleng...
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WO/2021/175969A1 |
The invention relates to a system with optical carrier distribution with a return channel without local oscillator, having a base station with a laser source (LD), with light of the laser source (LD) being distributed among one or more d...
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WO/2021/176608A1 |
This optical buffer unit comprises: a plurality of delay line units that impart a delay to an optical signal; and a switch that receives input of an optical signal output from a delay line unit, that includes a first output for outputtin...
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WO/2021/172069A1 |
Provided are a monitoring device, a monitoring method, and an optical transmission system which are adapted for an increase in the number of cores of a multi-core optical fiber transmission path and suitable for crosstalk monitoring. The...
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WO/2021/169419A1 |
Provided are an optical line terminal, an optical network unit and an optical communication system, which can support an operator in reusing an FTTH ODN to quickly develop and deploy a new service, thereby realizing full-service access b...
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WO/2021/172068A1 |
Provided are a monitoring device, a monitoring method, an optical amplifier, and an optical transmission system that are adapted for an increase in the number of cores in a multi-core optical fiber transmission path, and that are suitabl...
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WO/2021/166071A1 |
This optical transmission system is provided with: a plurality of transmission lines through which a mode-multiplexed signal in which a plurality of optical signals of different types of modes are multiplexed is transmitted; and at least...
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WO/2021/164406A1 |
An optical switching device, a redirection method, and a reconfigurable optical add/drop multiplexer, which are applied to the field of optical fiber communication, and are used to increase the filtering bandwidth and effectively reduce ...
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WO/2021/166112A1 |
An optical transmission system having: N transmitters for converting one of N electric signals that indicate mutually different data series into an optical signal; a signal generation unit for dividing the N optical signals outputted fro...
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WO/2021/162753A1 |
Systems, methods, and non-transitory computer-readable media are provided for performing channel swapping techniques for swapping bundles of optical channels in an optical network, such as a C+L band system, based on frequency band sensi...
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WO/2021/159204A1 |
Methods and devices for inter-spacecraft optical communication are described. The device comprises a transmitter for generating a first multi-wavelength signal composed of a first set of wavelengths; a receiver for detecting a second mul...
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WO/2021/156933A1 |
Wavelength-multiplexed signal lights (1a-1m) that have been transmitted by multiband transmission from a plurality of paths M(1) are, per each path, split into different wavelength bands (S-band, C-band, and L-band), and a wavelength cro...
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WO/2021/148118A1 |
An optical routing apparatus for an optical network. The optical routing apparatus comprises an optical transmitter configured to transmit an optical signal at a selected one of a first wavelength and a second wavelength, and a controlle...
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WO/2021/147957A1 |
Embodiments of the present invention provide an optical signal transmission method, apparatus, and device. The method at a first device side comprises: n first colored optical modules respectively transmit optical signals with the freque...
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WO/2021/141942A1 |
Systems and methods are provided for controlling one or more optical amplifiers of a C+L band photonic line system (30) of a telecommunications network in which C-band signals and L-band signals may be transmitted. In one implementation,...
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WO/2021/139580A1 |
An add/drop filter, comprising a first waveguide (101), a second waveguide (102) and multiple cascaded ring waveguides (103). The first waveguide (101) comprising an input port (101a) and an output port (101b), the second waveguide (102)...
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WO/2021/138243A1 |
A method of obtaining a measure of asymmetry between optical fibers of a forward and reverse paths is provided in order to synchronize clocks of optical nodes connected by asymmetrical optical fiber paths. The method includes receiving, ...
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WO/2021/134660A1 |
Embodiments of the present application provide a wavelength selection switch, The wavelength selection switch comprises a fiber array, a demultiplexer and a transmission direction adjustment component. The fiber array comprises a first f...
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WO/2021/136046A1 |
An optical interconnection communication method and system, relating to the field of high-speed optical interconnection in data centers. The method comprises: a binary bitstream signal to be transmitted being processed by a DSP and then ...
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WO/2021/135087A1 |
The present invention provides a service code stream processing apparatus and method. The service code stream processing apparatus comprises: a first service code stream input unit, configured to input a first service code stream; a firs...
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WO/2021/129854A1 |
Embodiments of the present invention provide a WDM-based baseband signal transmission apparatus and method, a storage medium, and an electronic device. The apparatus comprises a laser, a light emitting control module, and a light filter ...
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WO/2021/126674A1 |
An amplified hollow-core fiber (HCF) optical transmission system for low latency communications. The optical transmission system comprises a low-latency amplified HCF cable. The low-latency amplified HCF cable comprises multiple HCF segm...
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WO/2021/113793A1 |
The Bi-Di coherent transmission system is configured with at least one pair of modules coupled to one another via a single fiber. The modules each are configured with a pair of laser outputting two reference signals at respective differe...
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WO/2021/111691A1 |
The objective of the present invention is to perform remote sensing by enabling installation of an interrogator at a remote location having no communication or power supply infrastructure. In this optical fiber sensing system, obtained b...
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WO/2021/105672A1 |
A method of generating multiple channels of optical pulses comprises: providing a continuous wave optical input having an optical power; dividing the optical power of the optical input into equal consecutive slices in the time domain; an...
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WO/2021/102349A1 |
Photonic processors are described. The photonic processors described herein are configured to perform matrix-matrix (e.g., matrix-vector) multiplication. Some embodiments relate to photonic processors arranged according to a dual-rail ar...
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WO/2021/096647A1 |
A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct ...
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WO/2021/090205A1 |
An optical system (100) is described including: a reconfigurable optical device (103) with multiplexing wavelength division, comprising a plurality of actuators (A1-AN) and having associated a number of optical channels (M) and a number ...
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WO/2020/163002A9 |
Systems and methods for allocating optical circuits on optical mesh networks are disclosed herein. For example, the disclosed methods include identifying a new circuit to be added to a mesh optical network and identifying a set of potent...
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WO/2021/082445A1 |
Disclosed is a system capable of achieving multi-wavelength laser beam combining and splitting. The system comprises a mechanical lens barrel (1), wherein an input end collimator (2), a coated lens (4), and an output end collimator (3) a...
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WO/2021/081931A1 |
The embodiments of the present application provide a method for determining an optical signal power change and a power calculation device. The method of the embodiments of the present application comprise the following steps: obtaining a...
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WO/2021/073735A1 |
A method (200) of controlling compensation of chromatic dispersion in an optical transport network. The method comprises determining (202) whether a residual dispersion, RD, of a first path (3) within the network is within a defined RD r...
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WO/2021/075146A1 |
An optical fiber transmission system 1C comprises: a plurality of light supply devices 150 that output signal lights; a plurality of light reception devices 360 that receive the signal lights; and an optical fiber cable 200C that transmi...
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WO/2021/072290A1 |
An example system includes a first network device having first circuitry. The first network device is configured to perform operations including receiving data to be transmitted to a second network device over an optical communications n...
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WO/2021/070565A1 |
Provided are an optical transmission device and an optical communication system capable of coping with, at the optical fiber transmission path unit level, various transponder installation forms. An optical transmission device (100) is in...
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