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Matches 551 - 600 out of 13,007

Document Document Title
WO/2020/128040A1
The invention relates to an optical backplane (50) for an optical communication network architecture (20) distributing data to equipment (70), including: - an optical demultiplexer (51) coupled at input to an optical fiber (40) for carry...  
WO/2020/128231A1
The invention relates to a method for allocating a point-to-point channel to a user module of an optical communication network, said network comprising user modules and optical terminations, and supporting point-to-multipoint channels an...  
WO/2020/125768A1
Disclosed in the present application are a routing combiner, a routing wave combining method, a wavelength division routing method, and a network system. The routing combiner is used for a wavelength division multiplexing system, and com...  
WO/2020/122635A2
The present invention relates to a lightwave circuit for 5G communication, and an optical communication system using same, and provides a lightwave circuit for 5G communication and a single-channel full-duplex optical communication syste...  
WO/2020/121833A1
[Solution] An optical transmission system 1 transmits an RF signal by frequency division multiplexing. The optical transmission system 1 comprises a TOSA 2, an optical fiber 3, and an ROSA 4. The TOSA 2 includes a surface emitting laser ...  
WO/2020/121716A1
The present invention makes it possible to flexibly control rays of dummy light included in a wavelength division multiplexed optical signal and suppress signal quality degradation. An optical signal adjustment unit (1) is configured to ...  
WO/2020/116013A1
Provided is a relay device for relaying N (N is an integer greater than or equal to 2) optical signals, transmitted by a first space division multiplex optical fiber, to a second space division multiplex optical fiber. The relay device i...  
WO/2020/114335A1
Embodiments of the present application provide a rate negotiation method and a device for the same. The method comprises: a first apparatus switching, within a rotation period of a first optical fiber transmission rate set, an optical fi...  
WO/2020/107085A1
The present invention relates to a system for distributing power and communication signals in optical fibre access networks using optical boxes, including an optical box bus containing three optical splitter boxes (10) connected in seque...  
WO/2020/111335A1
Disclosed is a method and device for monitoring a ring-type optical network. According to an aspect of the present embodiment, a method for monitoring a ring-type optical network by an in-house device comprises the steps of: generating a...  
WO/2020/110778A1
[Problem] To miniaturize this optical receiver using a polarization demultiplexing technology. [Solution] An optical receiver 100A, which receives a polarization multiplexed signal in which two optical signals are orthogonally polarizati...  
WO/2020/112258A1
Systems and methods of optical restoration include, with a photonic service (14), in an optical network (10, 100), operating between two nodes (A, Z) via an associated optical modem (40) at each node, wherein each modem (40) is capable o...  
WO/2020/108202A1
The disclosure provides a timestamp acquisition method and a time synchronization system. The method comprises: a first device configuring a first tag for a first packet to be transmitted to a second device; and when the first tag is det...  
WO/2020/112836A1
A display system includes projection optics configured to project a beam of light in a first direction and an eyepiece unit including a first waveguide layer disposed in a first lateral plane and including an incident light surface and a...  
WO/2020/105168A1
The present invention is provided with a transmitter (1) and a receiver (2) which are controlled at constant temperatures. The transmitter (1) includes: a semiconductor optical amplifier (111) which has a reflection mirror (112) at one e...  
WO/2020/105526A1
In the present invention, when a first connection number of a b-th output port in an a-th wavelength selection switch connected to a path on either one of a Drop side and an Add side is expressed by f(a, b, k), and a second connection nu...  
WO/2020/103312A1
Disclosed a single-wavelength 100G light module. The light module comprises a light emitting unit and a light receiving unit; the light emitting unit receives a 100G/s-rate NRZ electrical signal, encodes and converts the 100G/s-rate NRZ ...  
WO/2020/105779A1
Disclosed is a multi-channel, bi-directional optical communication module according to an embodiment. The multi-channel, bi-directional optical communication module includes: a transmission unit which transmits an optical transmission si...  
WO/2020/102683A1
An embodiment includes an optical transmitter. An optical transmitter may include a primary laser for transmitting a primary optical signal and a backup laser for transmitting a backup optical signal. The optical transmitter may further ...  
WO/2020/102268A1
Aspects of the present disclosure describe systems, methods and structures including high-density submarine/undersea reconfigurable optical add/drop multiplexers (ROADM) having remote wavelength selective switch (WSS) redundancy.  
WO/2020/102011A1
Automatic optical link calibration systems and methods include, in an optical section with an Optical Add-Drop Multiplexer (OADM) multiplexer, an OADM demultiplexer, and zero or more in-line optical amplifiers between the OADM multiplexe...  
WO/2020/096913A1
A system for photonic computing, preferably including an input module, computation module, and/or control module, wherein the computation module preferably includes one or more filter banks and/or detectors. A photonic filter bank system...  
WO/2020/087328A1
Provided by the embodiments of the present invention is a photodetector chip, which comprises a substrate, a semiconductor optical amplifier part and a photoelectric detection part, the substrate comprising a surface; the photoelectric d...  
WO/2020/092899A1
Systems and methods for performing matrix operations using a photonic processor are provided. The photonic processor includes encoders configured to encode a numerical value into an optical signal and optical multiplication devices confi...  
WO/2020/088784A1
Optical protection switching apparatus (10), for a single fibre bidirectional WDM optical ring, comprising: first (12) and second (14) ports for coupling to first and second adjacent portions of a single fibre bidirectional WDM optical r...  
WO/2020/088746A1
An optical add/drop device (100) comprising: a common port (102); an add port (106); a first wavelength selective optical filter (110) configured to: receive an optical signal at an add wavelength from the add port and transmit said opti...  
WO/2020/086744A1
Disclosed are WDM multiplexers comprising cascaded beam couplers that collectively distribute the optical energy of each of a plurality of wavelength signals into a plurality of output signals, each containing an equal portion of the opt...  
WO/2020/073202A1
Provided are a calibration apparatus and method, and a wavelength division multiplexing system. The calibration apparatus comprises: a sending module for sending a first detection signal to a first multiplexing device; a receiving module...  
WO/2020/073109A1
The present invention relates to a system for distributing power in optical fibre access networks using optical boxes (10), including an optical box bus containing at least one optical splitter box (10) connected in sequence and terminat...  
WO/2020/077241A1
Methods and systems for CWDM MUX/DEMUX designs for silicon photonics interposers are disclosed and may include an optical transceiver including a silicon photonics interposer, a polarization splitter, a lens array, and a prism with a coa...  
WO/2020/076551A1
A fiber optic terminal having active modules capable of gathering data and reporting the data to a network operator. The active modules can be accommodated at the exterior of a terminal and may gather data such as information relating to...  
WO/2020/069645A1
An OLT comprises a processor configured to: obtain optical powers associated with ONUs, and generate an instruction instructing a transmit order of transmissions based on the optical powers; a transmitter coupled to the processor and con...  
WO/2020/070594A1
A system comprising: at least one hardware processor; and a non-transitory computer-readable storage medium having program code embodied therewith, the program code executable by said at least one hardware processor for: receiving, by a ...  
WO/2020/069648A1
An apparatus comprises: a receiver; a transmitter; a laser device coupled to the receiver and the transmitter and comprising: a first laser configured to provide to the receiver a first optical wave centered at a first frequency, and a s...  
WO/2020/069674A1
Methods and apparatus are provided for wavelength control of multiple independent laser sources to reduce relative wavelength drift between the different laser sources. According to some aspects, multiple laser wavelength control is prov...  
WO/2020/061791A1
A WDM optical network optimization method based on waveband switching, comprising: S1, establishing a waveband-switching elastic optical network; S2, marking a flag bit of a given request that has not been successfully allocated a resour...  
WO/2020/063583A1
Provided by the present invention are a data processing method and device for a passive optical network system and a passive optical network system, the method comprising: allocating a first partial bandwidth to a first optical network u...  
WO/2020/062139A1
Disclosed are an optical terminal multiplexer, a control method, and a wavelength division multiplexing system for reducing a link insertion loss and improving system performance. The optical terminal multiplexer in the present applicati...  
WO/2020/064672A1
The present disclosure relates to an optical line terminal that can be used in an optical fiber access system based on passive optical networks. The present disclosure further relates to a PON system; in particular the optical line termi...  
WO/2020/066863A1
[Problem] To make it possible to perform functional setting for an optical receiver from an optical transmitter using a simple configuration. [Solution] An optical transmitter is provided with: a first transmit circuit which generates a ...  
WO/2020/061790A1
A waveband switching method based on distance adaptation, comprising: S1. constructing a waveband switching elastic optical network; S2. finding the waveband path in the waveband switching elastic optical network that can adapt to the mo...  
WO/2020/062938A1
An OLT comprises a processor configured to generate a first message comprising a first field instructing an ONU to report its data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; a transmitter coupled to the processor an...  
WO/2020/057187A1
An Optical Line Terminal (OLT) includes a downstream transceiver coupled to a Passive Optical Network (PON). The downstream transceiver is configured to communicate over a plurality of bonded channels. The OLT also includes an upstream t...  
WO/2020/057981A1
A decoder for determining an estimate of a vector of information symbols carried by optical signals propagating along a multi-core fiber in an optical fiber transmission channel according to two or more cores. The decoder is implemented ...  
WO/2020/054614A1
In order to provide a path switching apparatus capable of continuing communication by operation corresponding to the state of occurrence of a failure, this path switching apparatus is configured to be provided with a first switching devi...  
WO/2020/052556A1
A method of communication includes receiving, by an optical line terminal (OLT), a registration request from an optical network unit (ONU) through a specific upstream wavelength, assigning, by the OLT, out of a plurality of normal servic...  
WO/2020/054393A1
The digital coherent receiver is provided with: an adaptive equalizer for executing adaptive equalization of a digital signal corresponding to a signal by using a first tap coefficient; a first coefficient update unit for updating the fi...  
WO/2020/056005A1
A system and method of creating frames comprised of blocks, where each block comprises data symbols corresponding to a higher order quadrature modulation format and support symbols corresponding to a lower order modulation format. One or...  
WO/2020/049791A1
This optical transmission device carries out wavelength filtering of an optical signal while preventing filtering-related constriction. A branching unit (1) branches a wavelength-multiplexed optical signal (SIN) including an optical sign...  
WO/2020/049440A1
An optical transmitter (102,200) is operable to generate an optical signal (260) by modulating a number N of frequency divisional multiplexing (FDM) subcarriers using transformed digital signals which are determined by applying a pseudo ...  

Matches 551 - 600 out of 13,007