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Matches 1 - 50 out of 16,666

Document Document Title
WO/2019/009987A1
A wavelength locker includes first and second waveguides to guide light. The wavelength locker also includes a multimode interference (MMI) coupler having a number of inputs and outputs. First and second inputs of the MMI coupler are cou...  
WO/2019/004040A1
In an optical transmission system according to the present invention, optical transmitters (20a-20n) each modulate, by use of 0/1 bit string data, two optical carrier waves in which peak components of frequencies across the center positi...  
WO/2019/005474A1
An apparatus for measuring optical power includes a first component configured to at least one of multiplex or demultiplex between a first composite optical waveguide and at least a first intermediate optical waveguide and a second inter...  
WO/2019/001857A1
Disclosed herein is a method of transmitting data in an optical network (10, 100) from a first location to a second location, as well as a corresponding receiver unit and transceiver. The method comprises the following steps: modulating ...  
WO/2019/001444A1
The present invention provides a filter block 300, 800, 1000 for an optical N-channels multiplexing/demultiplexing device 600 for receiving or emitting light, wherein the filter block 300, 800 comprises: a plurality of reflecting surface...  
WO/2018/236132A1
The present invention relates to an optical wavelength analyzer for analyzing an optical signal wavelength including a plurality of wavelengths transmitted by an optical transmitter in a wavelength division multiplexing optical network. ...  
WO/2018/236419A1
A method (700) for biasing a tunable laser (310) during burst-on and burst-off states through a common-cathode laser driving circuit (400) includes delivering a bias current (IBIAS) to an anode of a gain-section diode (402) having a shar...  
WO/2018/227624A1
Disclosed in the present invention are a data packet processing method, device and system. The method comprises: an OLT determining, according to the downlink bandwidth capacity of an optical network unit (ONU), a broadcast logical link ...  
WO/2018/227877A1
The present invention relates to the technical field of data and IP transmission equipment, and disclosed thereby are a WSON damage model-based shortest path calculating method and a system thereof. The method comprises the following ste...  
WO/2018/227983A1
Disclosed is a method for calculating an optical channel OSNR in real time based on a WSON network control plane, relating to the field of optical channel designs. The method comprises the following steps: S1. calculating an OSNR of an o...  
WO/2018/227556A1
An optical add-drop multiplexer, which relates to the technical field of photoelectricity and can reduce the processing difficulty by using a large-size Bragg grating. The optical add-drop multiplexer comprises a lower wave signal separa...  
WO/2018/228025A1
The present application relates to the technical field of communications. Provided are a method, device, apparatus, and system for frequency band sorting. The method comprises: a transmitting end acquires a target data stream, uses on a ...  
WO/2018/227005A1
An integrated wavelength division multiplexing (WDM) optical transceiver comprises the following elements: (1) a light source; (2) an array of photodiodes responsive to a plurality of optical signals and forming a plurality of electrical...  
WO/2018/219421A1
The present invention provides a WDM, device (100) for demultiplexing an optical signal (101) including a plurality of N wavelength channels. The device (100) comprises at least one demultiplexer block (102) configured to split the optic...  
WO/2018/219577A1
A system (1) for evaluating the reliability of an optical path (100) in an optical network (10), including: a measurement-based vulnerability evaluation unit (2), a component vulnerability evaluation unit (3), a topology reliability eval...  
WO/2018/222740A1
Switching technology may be incorporated into various systems, components, and/or architectures in a fiber optic network to promote network reconfigurability and design flexibility. A signal access unit comprises an input, an output, an ...  
WO/2018/219633A1
A method for monitoring a passive optical network, the passive optical network comprising a plurality of network components, comprises receiving an alert message (200) from a fault detection system associated with the passive optical net...  
WO/2018/214004A1
Disclosed are a data transmission method and apparatus, which belong to the technical field of fibre-optic communications. The method comprises: acquiring at least two paths of service data, and determining sub-frequency bands of the at ...  
WO/2018/214901A1
A wavelength-division multiplexed (WDM) polarization-independent transmissive modulator (PITM) that receives a multi-wavelength continuous wave (CW) light of indeterminate polarization, splits the multi-wavelength CW light into two trans...  
WO/2018/212148A1
Provided is a device that enables transmission frequency control in a short time and at high accuracy with a subcarrier multiplexing method. This optical transmission device that allocates transmission information to a plurality of subca...  
WO/2018/210470A1
A bidirectional optical repeater having two unidirectional optical amplifiers and a supervisory optical circuit connected to optically couple the optical ports thereof. In an example embodiment, the supervisory optical circuit provides o...  
WO/2018/213155A1
The present disclosure is directed to an optical device (100) including at least one temperature-dependent tunable element (106) for controlling a wavelength of an optical signal, a first temperature control circuit (122) for controlling...  
WO/2018/207835A1
Provided are an optical relay, an optical relay control method, and an optical transmission system with which a gain tilt or a gain deviation of an optical fiber amplification unit can be corrected. The optical relay is a C+L-band relay ...  
WO/2018/205876A1
A CO comprises a plurality of IM lasers and a Butler matrix system coupled to the plurality of IM lasers. The Butler matrix system comprises a plurality of optical input ports corresponding to the plurality of IM lasers, Butler matrix co...  
WO/2018/198326A1
An optical transmission system (100) is characterized by comprising: a multi-core optical fiber (2001) having a first core (2100) and a second core (2200); and a plurality of optical transmission devices (1000), (1100) that output differ...  
WO/2018/196780A1
An ONU comprises: a receiver configured to receive a discovery gate message from an OLT, the discovery gate message comprises a channel assignment field, and a discovery information field, the channel assignment field indicates transmiss...  
WO/2018/200754A1
Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range  
WO/2018/198478A1
[Problem] To provide a transmission device, etc., designed to expand transmission capacity while reducing component costs. [Solution] This transmission device transmits wavelength multiplexed light to a transmission line. The transmissio...  
WO/2018/196605A1
An embodiment of the present invention relates to the technical field of communications and provides a reconfigurable optical add-drop multiplexer, which may solve the problem wherein existing reconfigurable optical add-drop multiplexers...  
WO/2018/196056A1
The present invention relates to a method for constructing a mode division multiplexing optical fibre communication system, the method comprising the following content: converting, at a transmitting end, a multi-path input optical signal...  
WO/2018/196689A1
Disclosed is a multi-wavelength hybrid integrated light emitting array, comprising a plurality of light processing units, wherein each of the light processing units comprises: an active optical device (1), including a first substrate (11...  
WO/2018/196776A1
A computer-implemented method of handling Ethernet packets in a passive optical network (PON) is disclosed. The method comprises generating, by the one or more processors, an initial envelope header that indicates that the initial envelo...  
WO/2018/199461A1
Provided are a wireless relay apparatus and an operating method therefor. The apparatus is a wireless relay apparatus for relaying a communication signal between a base station and a terminal, comprising: a donor unit for transmitting an...  
WO/2018/196833A1
Provided are a message sending method and message receiving method and apparatus. The message sending method comprises: determining an operating mode used for sending a message, said operating mode being a mode using the following means ...  
WO/2018/193750A1
Provided is a video conferencing service with which flexible connections are possible and which allows for a strong sense of presence between a plurality of sites via an optical path network using signal processing and a comparatively si...  
WO/2018/193835A1
This bidirectional optical transmission system comprises: a first optical transmission path provided with a first repeater (30A); a second optical transmission path provided with a second repeater (30B); and C+L-band transmission/recepti...  
WO/2018/190240A1
[Problem] To provide a relay with which the power of excitation light can be controlled in a flexible manner. [Solution] A relay provided with: an excitation light supply means which generates excitation light; a first combining means wh...  
WO/2018/190041A1
A signal reception device is provided with at least one signal separating device for separating a specific signal from a plurality of reception signals. Each of the at least one signal separating device is provided with: a spatial filter...  
WO/2018/184124A1
The invention concerns a modulation method for modulating a stream (S) of binary data into a polarized signal (PS), the method comprising : providing a segment from the stream (S) of binary data, the segment comprising at least 4 bits; e...  
WO/2018/184461A1
Systems and methods for applying a pilot tone to multiple spectral bands are provided. An initial signal is divided into multiple spectral bands. A pilot tone is applied to each of the spectral bands, and then the signals are again combi...  
WO/2018/184500A1
A transceiver comprises: a sampling phase optimization stage comprising: a first interpolator; a first equalizer coupled to the first interpolator; a first optimizer coupled to the first equalizer; and an output; and an equalization stag...  
WO/2018/176688A1
The present invention relates to an optical transmission network, comprising an optical signal transmitting part, an optical signal receiving part, and a transmission fiber connected between the optical transmitting part and the optical ...  
WO/2018/180912A1
Provided is a method which is for performing synthesis and in which, even when the quality of each of reception signals varies, phase discontinuity is not generated in a signal after synthesis and phase relationships between the receptio...  
WO/2018/183542A1
A network system for a data center is described in which a switch fabric provides full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Mor...  
WO/2018/180913A1
In order to additionally provide an optical signal at an appropriate wavelength interval to an optical fiber transmission path, the test-use control device for a transmission-side optical wavelength multiplex transmission device accordin...  
WO/2018/179497A1
A migration method for a station-side device for an optical communication system, said method including: a step for forming a station-side device so as to be capable of receiving in a reception unit an uplink signal having a wavelength i...  
WO/2018/183553A1
A network system for a data center is described in which a switch fabric provides full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Mor...  
WO/2018/179686A1
The present invention demultiplexes optical signals of different wavelength intervals while suppressing the number of ports for the wavelength selective switch being used. A branching means (11) branches optical signals by the number of ...  
WO/2018/180611A1
In order to enable more stable monitoring of communication status, a communication device is provided with: a setting unit which sets a first wavelength selected from wavelength selection alternatives included in wavelengths of light inc...  
WO/2018/183526A1
A network system for a data center is described in which a switch fabric provides full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Mor...  

Matches 1 - 50 out of 16,666