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Matches 1 - 50 out of 17,381

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
WO/2021/072409A1
Optical subcarriers may be employed to transmit data in a point-to-multi-point network whereby a hub node including a network switch receives such data from a client and transmits information indicative of such data to multiple leaf or n...  
WO/2021/070790A1
An optical signal processing circuit (1) is provided with: an FDE-MIMO equalizer (2) which, on the basis of consecutive sub-carrier signals including a target sub-carrier signal in an optical multi-carrier signal being received, generate...  
WO/2021/064847A1
A transmission/reception device (100) comprises: a photoelectric conversion unit (120) that converts an optical signal based on a plurality of first optical signals mutually differing in frequency band into an electric signal and outputt...  
WO/2021/056273A1
A tunable optical filter device. The device comprises a first substrate (101) provided with a first reflection structure (106) and a thin film (103) provided with a second reflection structure (107), the outer peripheries of the surfaces...  
WO/2021/056825A1
An optical module, an optical communication device and an optical transmission system. The optical module comprises: a housing (101), a mainboard (102), a first optical circulator (103) and a first optical fiber adapter (104), wherein a ...  
WO/2021/057363A1
The present application discloses a state control method, applied to an ONU or ONT of a passive optical network (PON). Said method comprises: receiving a first downlink data frame, the first downlink data frame comprising data of N diffe...  
WO/2021/055844A1
A system (e.g., an optical amplifier) comprising gain fibers (e.g., Bismuth-doped optical fiber) for amplifying optical signals. The optical signals have an operating center wavelength (λ0) that is centered between approximately 1260 na...  
WO/2021/052579A1
The present invention relates to the technical field of processing, particularly equalizing a digital signal representing samples of an optical signal, wherein the equalizing is supported by 2x2 MIMO channel estimation and State of Polar...  
WO/2021/053709A1
The purpose of the present invention is to provide an optical transmission system which is capable of controlling a transmission capacity and a signal processing load of a MIMO equalizer without being restricted by the number of propagat...  
WO/2021/047260A1
Disclosed are a method for determining a logical connection, and a network controller and a system. The method comprises: determining a set of candidate single boards that may have a logical connection with a target single board; respect...  
WO/2021/044632A1
An optical signal processing device according to an embodiment separates and detects an optical signal transmitted by a mode-division multiplexing optical communication scheme, by signal processing based on a Multi-Input Multi-Output (MI...  
WO/2021/046468A1
An example node includes a receiver, a switch circuit, and a transmitter. The receiver is configured to receive a first modulated optical signal including a first plurality of optical subcarriers, and supply a plurality of data streams b...  
WO/2021/043424A1
An optical node (100) for multiplexing optical signals is disclosed. The optical node (100) comprises an add port (102), a common port (104), an auxiliary port (106), an optical transfer module (110), and a reflecting element (108) coupl...  
WO/2021/038661A1
An objective of the present invention is to provide an optical transport system which, even though having a MIMO equalizer, can easily control the transport capacity and optical signal quality. An optical transport system according to th...  
WO/2021/036933A1
The present application provides an optical channel identification method and apparatus and optical communication monitoring device and storage medium, said method comprising: performing convolution processing on a convolution pre-proces...  
WO/2021/033248A1
The purpose of the present invention is to provide an optical communication system and an optical communication method that can also reduce delay generated in processing for obtaining a transfer function for performing distortion correct...  
WO/2021/031832A1
Embodiments of the present invention provide a wavelength division multiplexing system, a local apparatus, and a remote apparatus. The wavelength division multiplexing system comprises: a plurality of optical modules, and a pair of combi...  
WO/2021/029013A1
A local wavelength defragmentation device that performs wavelength defragmentation on one or more wavelength paths that pass through a target link in an optical transmission network, wherein the local wavelength defragmentation device co...  
WO/2021/019568A1
The present disclosure provides a method for providing a white box transponder (132). The method includes a step of receiving the plurality of user inputs (104) from an orchestrator (102) at a programmable photonic switch mode system (10...  
WO/2021/016719A1
An optical fiber comprises a core having an elliptical cross section and a cladding having a circular cross section. The core has an ellipticity between 2 and 40. The core and the cladding have a common central axis with the core being e...  
WO/2021/016966A1
Disclosed are a multi-wavelength light source and an optical chip, wherein same are used for improving the performance of a wavelength division multiplexing communication system. The multi-wavelength light source comprises a laser, an op...  
WO/2021/020684A1
Disclosed are an optical time division multiplexing-type optical transmission method and apparatus using an optical pulse having intensity modulated with a sine wave as an input signal. An optical time division multiplexing-type optical ...  
WO/2021/008540A1
The disclosed systems, apparatuses and methods are directed to controlling a difference between a first center frequency of a first optical subcarrier and a second center frequency of a second optical subcarrier of an optical super-chann...  
WO/2021/011856A1
A data and power communication cable that provides galvanic isolation between data- signal related circuitry and power- signal related circuitry present at both ends of the cable. The cable includes a first connector configured to mate w...  
WO/2021/008503A1
Disclosed in embodiments of the present disclosure are a management control method and device for a new fronthaul network. The method comprises: a first wavelength division multiplexing (WDM) device acquiring port configuration informati...  
WO/2021/009814A1
A monitoring control unit (22) of an OXC (20d) stores a management table (22a) in which respective pieces of information concerning the optical signal modulation method, FEC, and frame mode are stored in association with each other and, ...  
WO/2021/008224A1
Disclosed are a method for reducing the uplink time delay of a passive optical network, and a related device. An optical line terminal (OLT) comprises: a basic wavelength channel unit and a corresponding extension wavelength channel unit...  
WO/2021/009869A1
An optical demultiplexing device (40) is provided with: a plurality of optical gate switches (41a to 41n) that allow passage of a multiplexed optical signal when turned ON and block the multiplexed optical signal when turned OFF, the mul...  
WO/2021/008821A1
The embodiments of the invention provide an optical transmitter (11) for transmitting a vector of information symbols over an optical fiber transmission channel (13) made of a multi-core fiber, optical signals carrying said vector of inf...  
WO/2021/004471A1
Disclosed are a WDM-PON system and a management and control method therefor, relating to the technical field of WDM-PON access. The WDM-PON system is applied to a 5G fronthaul service. The system comprises an OLT, an ODN, a wavelength-tu...  
WO/2021/007036A1
Systems and methods include, responsive to provisioning a media channel (52) on a degree, wherein the media channel (52) is a contiguous portion of optical spectrum supporting N channels, N is greater than 1, causing allocation of optica...  
WO/2021/000616A1
Disclosed in an embodiment of the present invention is a wavelength selective switch, comprising: an input optical fiber collimation array comprising multiple input ports; a relay lens positioned between a first switching engine and a se...  
WO/2020/259843A1
There is provided a security system for use at an enclosure containing one or more passive components of an optical communication link. The security system comprises a sensor configured to detect a physical breach of the enclosure, and a...  
WO/2020/261924A1
Provided are a junction device and an undersea cable system capable of saving a branch line when a problem involving ground fault occurs in a power feed line on a branch station side. This junction device is inserted into a power feed li...  
WO/2020/257149A1
Aspects described herein include an optical apparatus comprising at least a first Bragg grating of a first stage. The first Bragg grating is configured to transmit a first two wavelengths and to reflect a second two wavelengths of a rece...  
WO/2020/257772A1
Entanglement among qubits can be generated using "rasterized" and interleaving techniques. A circuit can include a resource state generator that generates one resource state per clock cycle, with each resource state having a number of en...  
WO/2020/253478A1
The present application provides a resource management method and apparatus, a communication device, and a storage medium. The method comprises: obtaining node identification information and interface information of an optical network no...  
WO/2020/253850A1
Provided are a front-haul transport network control method, a network device, and a front-haul transport network control system. The method is applied to an active wavelength division multiplexing (WDM) device, and comprises: obtaining m...  
WO/2020/256913A1
An apparatus and method for generating a dense wavelength division and multiplexing (DWDM) optical stream in a photonic integrated circuit (PIC) is disclosed. An optical input source including a number (N) of optical channels (wavelength...  
WO/2020/255466A1
A submarine optical cable system equipped with a submarine optical branching device for branching off to a third terminal station between a first and a second terminal station, wherein it is made possible to switch the connection of an o...  
WO/2020/247692A1
An example system includes a hub transceiver and a plurality of edge transceivers. The hub transceiver is operable to transmit, over a first communications channel, a first message to each of the edge transceivers concurrently, including...  
WO/2020/244634A1
The embodiments of the present disclosure provide an optical module, a management and control information processing method, and a communication system; the optical module comprises: a clock recovery unit, a light-emitting unit, a light-...  
WO/2020/244633A1
Provided in the present disclosure are a control method for a radio access network, a network device, and a system, the method comprising: sending a management request to a remote radio unit (RRU)/active antenna unit (AAU); and receiving...  
WO/2019/204336A8
Apparatus and methods for unified high-bandwidth, low-latency data services. In one embodiment, a network architecture having service delivery over at least portions of extant infrastructure (e.g., a hybrid fiber coaxial infrastructure) ...  

Matches 1 - 50 out of 17,381