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Matches 1 - 50 out of 16,943

Document Document Title
WO/2019/208413A1
In order to suppress narrowing of the bandwidth of an optical signal which occurs when multiplexing/demultiplexing devices are disposed in multiple stages, the optical transmission device is provided with: first multiplexing devices each...  
WO/2019/204960A1
A method and a system for measuring photon orbital angular momentum mode based on spiral transformation: by means of a phase plate (1) positioned on an input plane, mapping an incident light field along a helical path on the input plane ...  
WO/2019/205173A1
A wireless access network, a construction method therefor, and a communication device. The wireless access network comprises two communication devices, two multiplexer/demultiplexer units, and an optical fiber. The first communication de...  
WO/2019/207487A1
An approach for realizing low-power, high-port-count optical switching systems, such as OXCs, WXCs, and ROADMs is presented. Optical switching systems in accordance with the present disclosure include arrangements of frequency-filter blo...  
WO/2019/205136A1
The present application provides a message processing method and device. a first device identifies, by means of a first FlexE shim layer disposed in the first device, a received first message; when the first device identifies that the fi...  
WO/2019/201441A1
A path computation engine, PCE, (100) for an optical communications network comprising a plurality of nodes and a plurality of links. The PCE comprises a processor and memory comprising instructions executable by the processor whereby th...  
WO/2019/201100A1
Disclosed in embodiments of the present application are an auxiliary management and control channel (AMCC) device and a transmission wavelength adjustment and control method. The AMCC device comprises: an AMCC module configured to adjust...  
WO/2019/204336A1
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) ...  
WO/2019/204043A1
Disclosed herein are multi-layer wavelength-division multiplexing (WDM) devices that include a first optical signal router to route first demultiplexed signals from a common layer to a first channel layer and a second optical signal rout...  
WO/2019/198465A1
An optical reception terminal is provided with: multiple matrix-type filters (40, 41) which are provided for every multiple modes, and each perform polarized wave separation and equalization on a coherently received signal in a mode corr...  
WO/2019/196884A1
In wavelength division multiplexing (WDM) systems, one optical multiplexing section (OMS) can support several channels. During a network reconfiguration, the number or channel index of the channels in the OMS may change, which may result...  
WO/2019/199447A2
An integrated optical beam steering system is configured in three stages to provide beam steering for image light from an imager (e.g., laser, light emitting diode, or other light source) to downstream elements in a display system such a...  
WO/2019/196781A1
Disclosed are an optical cross-connect device control method and apparatus, an optical transmission device, and a storage medium. The method comprises: establishing a connection with an optical cross-connect device according to the IP ad...  
WO/2019/200320A1
A configurable wide area distributed antenna system is provided. At least one remote master unit of the system is in communication with at least one base station. The remote master unit includes a remote switch function that provides at ...  
WO/2019/191874A1
Embodiments of the present application relate to the field of fiber communications, and provide an optical add drop multiplexer and an optical signal transmission method. The optical add drop multiplexer comprises N cascaded filter units...  
WO/2019/195244A1
A cross-connect switch architecture is described. A cross-connect switch device includes a cross-point switch array, a plurality of photo detectors and a plurality of amplifiers. The cross-point switch array includes a plurality of switc...  
WO/2019/188633A1
[Problem] A WSS is provided with ports through which an optical signal is inputted/outputted, and allows to set the wavelength band of the optical signal to be selectively inputted/outputted for each port. Here, narrowing of the optical ...  
WO/2019/186096A1
An optical filter assembly comprising: a tuneable optical filter; a beam splitter assembly configured to split an input beam into an output beam, a reference beam, and a probe beam, and to direct the output beam and the probe beam throug...  
WO/2019/186672A1
This submarine optical communication system control device (1) has: an optical intensity distribution determination device (2) for determining the optimum distribution of signal light intensity per allocated frequency of an optical path ...  
WO/2019/190763A1
Disclosed herein is a wavelength-division multiplexing device with a unified passband. In particular, disclosed is a wavelength-division multiplexing (WDM) device with at least a common port, a channel port, and a WDM filter. The common ...  
WO/2019/185139A1
In one example aspect, an optical network node is configured to operate in a first mode and a second mode. The node comprises a first optical routing apparatus configured to direct a first optical signal received from an optical network ...  
WO/2019/191730A1
A communication network includes a coherent optics transmitter, a coherent optics receiver, an optical transport medium operably coupling the coherent optics transmitter to the coherent optics receiver, and a coherent optics interface. T...  
WO/2019/185537A1
The present invention provides a network architecture in which the modem in a hybrid metallic-optical fibre access network is moved from the customer premises to the distribution point. Multiple copper pairs can be used to transmit phant...  
WO/2019/188462A1
In order to achieve a seabed optical transmission system that uses a plurality of wavelength bands, this seabed branching device is characterized by comprising: a first demultiplexing unit that demultiplexes a wavelength multiplexed opti...  
WO/2019/179320A1
The present disclosure includes methods and systems in which idle tones are added at an ingress and terminated at an egress of a given fiberoptic communication link between ROADM nodes. An equalization process can be performed across the...  
WO/2019/180822A1
An optical signal control device (70) is configured to be provided with a leakage amount calculation unit (83) for calculating a leakage amount of light leaking into each optical signal included in a multiplexed signal from the other opt...  
WO/2019/176714A1
According to the present invention, the internal temperature of an optical transmitter may be distributed unevenly and changed from moment to moment due to changes in the operating state thereof and the temperature of the environment. De...  
WO/2019/174476A1
The present invention relates to the field of WDM optical communications, and provides a feedback tuning method and device for a beyond-100M WDM transmission system. The method comprises: obtaining a forward error rate of a forward error...  
WO/2019/176834A1
In order to provide an optical transmission device capable of implementing the spectral control of WDM signals while taking into account optical component characteristics, an optical transmission device is provided with: a WSS; a wavelen...  
WO/2019/173059A1
Disclosed herein are optical add-and-drop multiplexer devices. In particular, disclosed is an optical add-and-drop multiplexer (OADM) device including two common ports and two reflection ports within two dual fiber pigtails associated wi...  
WO/2019/171055A1
A common component assembly (10) is provided, for a cable joint for joining a first submarine optical cable and a second submarine optical cable. The assembly comprises: a first end face (71) comprising a first opening (73) and a first f...  
WO/2019/171953A1
This optical transmission system is provided with multiple transmission paths for transmitting a mode multiplexed signal, and one or more mode substitution units provided between the transmission paths. The mode substitution unit perform...  
WO/2019/170071A1
The present application provides an electronic device, method, and computer readable storage medium for wireless communication. The electronic device comprises a processing circuit, the processing circuit being configured to: determine a...  
WO/2019/167465A1
In the present invention, coupler (11) splits wavelength-multiplexed optical signal (S1) including optical signal (T1) and optical signal (B1) input through transmission line (TL11). Wavelength selection unit (13): receives input of wave...  
WO/2019/167928A1
This propagation characteristic analysis device uses Brillouin time domain analysis to analyze a propagation characteristic over the length direction of an optical fiber to be analyzed, which is a multiple mode optical fiber for multiple...  
WO/2019/158195A1
The present invention provides a transmitter and receiver for Quantum Key Distribution (QKD) in which the QKD is combined with classical communication, i.e. the transmission of a QKD signal is combined with the transmission of a classica...  
WO/2019/160838A1
A PON having an OLT configured to send downlink transmissions to ONUs using amplitude modulation and two symbol rates. An example ONU includes a clock-recovery circuit capable of continuous clock extraction from the received variable-rat...  
WO/2019/157811A1
Embodiments of the present application disclose an optical cross-connect device, relating to the field of optical communications, and capable of reducing volume and costs. The optical cross-connect device comprises: an input end unit, an...  
WO/2019/158861A1
The invention relates to a system for transmitting data in an optical network comprising a plurality of source nodes and recipient nodes. A source node generates, in a spectral band that is associated with same, a multi-carrier optical d...  
WO/2019/155990A1
This optical node device is provided with: one or more input-side wavelength selection switches; a plurality of output-side wavelength selection switches; and an optical amplification unit. The input-side wavelength selection switches ea...  
WO/2019/154512A1
There is provided an apparatus (130) for fiber optic line continuity detection. The apparatus (130) comprises an optical input (382) connectable to a first optical fiber (242) of a fiber optic line (140), an optical output (384) connecta...  
WO/2019/148264A1
A tunable optical filter includes sequentially coupled Mach-Zehnder (MZ) interferometers. The first and last interferometers are configured to function as variable power splitter / combiner, whereas the middle interferometer or interfero...  
WO/2019/149993A1
A passive optical network (100) having an optical-signal monitor (180) configured to monitor carrier- wavelength drifts during optical bursts transmitted between the optical line terminal (110) and optical network units (1601 - 160N) the...  
WO/2019/150509A1
[Object] It is therefore an object of the disclosure of this document to attain a data transmission system with a simple transmitter implementing polarization multiplexing using either DML or EAM and a receiver with only one PD. [Solutio...  
WO/2019/149342A1
An optical system (200,400) and method (10) for seeding an optical transmitter. The optical system (200,400) comprises a first optical transmitter (208,408) comprising a first reflective optical amplifier (210,410) and a second optical t...  
WO/2019/151067A1
The present invention provides an optical transmission device, a transmission system, and a control method for a transmission system which make it possible to adjust the wavelength band of dummy light according to the wavelength band of ...  
WO/2019/141168A1
A computer implemented method of configuring an optical path includes selecting with one or more processors a wavelength for the optical path, generating with one or more processors, a first request for a first type of node in the optica...  
WO/2019/140999A1
Disclosed in the present application are a wavelength division multiplexing optical transmission apparatus and system, and an implementation method, the wavelength division multiplexing optical transmission apparatus comprising a transmi...  
WO/2019/138246A1
There is presented an apparatus for use with a Wavelength Division Multiplexed Passive Optical Network (WDM-PON). The apparatus comprises an electronic controller, optical transmitters and a wavelength multiplexer. The electronic control...  
WO/2019/137734A1
An optical data transmission system and method for, at an optical transmitter: converting to a second wavelength, an optical data signal at a first wavelength; transmitting at the second wavelength, the optical data signal to an optical ...  

Matches 1 - 50 out of 16,943