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WO/2017/204872A1 |
A specification of an intent that identifies a desired service and a reference architecture is received. The desired service is rendered to provide instructions for dispatch to a plurality of devices having roles. Rendering the desired s...
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WO/2017/205652A1 |
A high speed satellite-based laser communications system and method for communications between a satellite-based transmitter system and a ground-based receiver over a free space optical link. The satellite-based transmitter system includ...
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WO/2017/201757A1 |
Disclosed in embodiments of the invention are a service transmission method and a first transmission device. The method comprises: mapping n client signals all having a rate t to ms/t sub-load regions of m FlexO frames, wherein a payload...
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WO/2017/202204A1 |
The disclosure is directed to an optical telecommunications system which includes a central node and a plurality of user nodes. The central node provides the light necessary to enable communication between the user nodes. Within the cent...
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WO/2017/197978A1 |
A ranging method, an optical line terminal (OLT) and an optical network unit (ONU). The method comprises: an optical network unit (ONU) opening all receivers to receive downlink data, and after monitoring a registration request of an opt...
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WO/2017/193601A1 |
Disclosed is a transmission apparatus for an ultra-narrow band spectrum segmentation incoherent light source based on an FFP filter and an FFP-SOA in a WDM-PON, comprising a central station, a transmission optical fibre, a remote node an...
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WO/2017/193538A1 |
Disclosed is a signal generation method, which can determine specific magnitude values of various level amplitudes of PAM signals distributed at non-equal intervals, while generating the PAM signals. The method comprises: a signal transm...
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WO/2017/192894A1 |
A system for performing failover switches in an optical network, such as a time and wavelength division passive optical networks (TWDM PON) like NG-PON2, includes a backup optical line terminal (OLT) for backing up communications of a pr...
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WO/2017/190806A1 |
A network node (400) for use with a single-fiber bidirectional communication link comprises a filter (300). The filter (300) comprises at least four ports. A first port (301) is configured to communicate with the single-fiber in a west d...
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WO/2017/190331A1 |
A reconfigurable optical add/drop multiplexer, relating to the technical field of optical communications. The reconfigurable optical add/drop multiplexer comprises: an input component (101), a first wavelength dispersion component (102),...
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WO/2017/188030A1 |
Provided are an image processing device and an image processing method with which it is possible to read efficiently, with fewer calculation resources, a visible light communication signal including at least one of a spatial modulation s...
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WO/2017/185505A1 |
A channel adjustment method, apparatus and system. The method comprises: an optical line terminal (OLT) receives a channel binding capability parameter reported by an optical network unit (ONU) and supported by the ONU; the OLT determine...
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WO/2017/186098A1 |
An apparatus comprises: a processor configured to: select a first channel from among a plurality of channels in a network, and generate a first message assigning a first grant corresponding to the first channel; a transmitter coupled to ...
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WO/2017/189538A1 |
An arrayed waveguide grating (AWG) device for use in an optical transceiver is disclosed, and can de-multiplex an optical signal into N number of channel wavelengths. The AWG device can include an AWG chip, with the AWG chip providing a ...
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WO/2017/184860A1 |
Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, an optical line terminal (OLT) controller comprises: a first communications interface over which the OLT controller intera...
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WO/2017/177549A1 |
Disclosed are a passive optical network architecture, a method for the passive optical network architecture to implement data transmission, and an optical network device. The architecture comprises an optical line terminal (OLT) supporti...
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WO/2017/177550A1 |
A passive optical network architecture, a method for the passive optical network architecture to implement data transmission, and an optical network device. The architecture comprises an optical line terminal (OLT) supporting a plurality...
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WO/2017/173971A1 |
An OLT comprises: a memory; a processor coupled to the memory and configured to: determine each of a plurality of channels associated with an ONU, select a first channel from among the channels, and generate a first message comprising at...
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WO/2017/167199A1 |
A multiplexer comprises: an output circuit comprising a multiplexer output; and a first buffer coupled to the output circuit and comprising: a first selection input configured to receive a first selection signal; a first logical input co...
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WO/2017/170008A1 |
[Problem] To provide an excitation light source apparatus capable of assuring excellent optical transmission characteristics even when gain tilting occurs in an optical fiber transmission relay system that transmits WDM signal lights. [S...
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WO/2017/167400A1 |
A network node (400) for use as a hub node of a network that further comprises one or more remote nodes, wherein the network node (400) is coupled to at least first and second connections (410, 412) for communication with one or more rem...
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WO/2017/166546A1 |
Disclosed are a method and device for detecting a continuously-emitting optical network unit (ONU), and an optical line terminal (OLT). The method comprises: upon detecting an ONU fault alarm, fixedly allocating a timeslot to each ONU co...
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WO/2017/165561A1 |
In an example, a communication module includes an optical transmitter, an optical receiver, and a periodical filter. The optical transmitter is configured to emit an outbound optical signal. The optical receiver is configured to receive ...
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WO/2017/163993A1 |
[Problem] To provide an optical transmission system that is capable of improving transmission characteristics. [Solution] This optical transmission system is provided with an optical transmission apparatus 10 and an optical transmission ...
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WO/2017/157883A1 |
Disclosed is a receiver for receiving an optical signal comprising a plurality of carriers within a predetermined frequency band. The receiver comprises means for sampling and converting each of the carriers into a set of corresponding d...
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WO/2017/160902A1 |
A method and apparatus for compensating optical dispersion over an optical fiber are provided in fiber optic communications to increase a transmission distance by overcoming the optical dispersion caused by wavelength changes of light so...
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WO/2017/159519A1 |
In order to provide a feature with which it is possible to suppress the occurrence of an optical surge independently of the type of optical switch, there is provided an optical control device for processing inputted first light and outpu...
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WO/2017/161234A1 |
A coaxial transmitter optical subassembly (TOSA) including a ball lens may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes a laser package with a ball lens holder se...
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WO/2017/159596A1 |
In the present invention, a node (10) comprises: a multiplexing unit (11) that multiplexes, into a wavelength group signal, a plurality of sub-carrier signals which perform light wavelength multiplex communication; an output unit (12) th...
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WO/2017/153999A1 |
A fiber optic cable with a connector for a rugged environment, including a connector assembly, a fiber optic cable entering a back side of the connector assembly, wherein the fiber optic entering the back side of the connector assembly i...
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WO/2017/154454A1 |
To correct the wavelength dependency of the insertion loss characteristics of a wavelength selection switch during operation of the wavelength selection switch. A multiplexer (13) inserts dummy signal light generated by a light source (1...
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WO/2017/155979A1 |
A Raman amplifier having an optical pump configured to generate pump bands, each of which is spectrally aligned with a respective wavelength channel of a frequency grid in a manner that enables the pump bands to coexist in an optical fib...
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WO/2017/151395A1 |
An optical combiner for a communications network transmitting both upstream signals and a downstream optical signal. The communications network includes an array of amplifiers, each receiving a respective instance of the downstream optic...
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WO/2017/150277A1 |
[Problem] To provide an optical transmission device which realizes the flexibility of optical communication such as wavelength reutilization while suppressing the band constriction of an optical filter, and which supports a flexible grid...
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WO/2017/148203A1 |
Apparatuses and methods for wavelength selective switching and optical performance monitoring are provided. Spatially separated wavelength channels of an optical signal are directed onto an optical deflector array. The optical deflector ...
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WO/2017/149668A1 |
This communication device is provided with: a standard optical transceiver (10) for generating a standard subcarrier signal, which is a subcarrier signal; an optical transceiver (20) for narrowband capable of generating a subcarrier sign...
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WO/2017/150481A1 |
Provided is an optical fiber transmission system comprising a structure for effectively suppressing inter-mode XT, while suppressing increase in processing load in a MIMO configuration. One embodiment of a crosstalk suppression means lim...
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WO/2017/147770A1 |
A wavelength selection switch apparatus, a communication device and a wavelength switching method. The wavelength selection switch apparatus comprises an incident/outgoing unit (10), a wavelength dispersion/synthesis unit (20), a light b...
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WO/2017/149676A1 |
An optical receiving device for receiving a polarization-multiplexed optical signal is provided with a coherent optical receiver (11) for converting the optical signal into an electric signal, an analog-digital converter (12) for convert...
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WO/2017/150278A1 |
[Problem] To provide an optical device capable of suppressing cutting of optical signals due to band-narrowing of an optical filter. [Solution] The optical device of the present invention is provided with a plurality of optical filters f...
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WO/2017/148079A1 |
A method for managing a multi-wavelength passive optical network, comprising; an optical module extracting a module management signal from a reception signal input from an optical signal interface, wherein the module management signal ca...
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WO/2017/145233A1 |
Provided is an optical transmitter (1a) that can determine a tap coefficient in consideration of a reception BER of adjacent wavelength signals in a wavelength multiplex transmission system , thereby reducing the influence of crosstalk b...
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WO/2017/147416A1 |
A photonic feedforward analog-to-digital converter (ADC) is provided. According to one aspect of the invention, the signal to be digitized is applied to only one electro-optic modulator. High speed is achieved by taking advantage of the ...
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WO/2017/143518A1 |
A method and apparatus for establishing an interlayer link binding relationship, relating to the technical field of communications, and used for solving the problem of low line fault alarm efficiency in the prior art. The method comprise...
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WO/2017/145973A1 |
[Problem] To accommodate a single-band signal processing device in a high-density manner. [Solution] Provided are the following: a first signal cable; a second signal cable; a third signal cable; a fourth signal cable; a first multi-band...
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WO/2017/145967A1 |
In optical communication networks using wavelength-division multiplexing, improvement of utilization efficiency of the optical communication networks is difficult due to bandwidth constriction effects during wavelength selection processi...
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WO/2017/145901A1 |
This optical communication system is configured in which an optical transmission device performs wavelength multiplexing and subsequently performs mode multiplexing, and an optical reception device performs wavelength separation and subs...
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WO/2017/141125A1 |
In an optical subcarrier multiplex system 300, an input data signal is jointly coded with at least one forward error correction (FEC) code in a joint FEC coder 302 before symbol mapping in a symbol mapper 304 and before subcarrier modula...
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WO/2017/140132A1 |
Systems and methods for performing wavelength conflict detection are provided. These are to detect situations in optical networks where two instances of the same wavelength channel have been added. Wavelength conflict detection is perfor...
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WO/2017/138949A1 |
Multiple electro-optic modulators and microwave-photonic links are disclosed. For one electro-optic modulator, the modulator couples to an optical source that provides an optical power and a radio frequency source that provides a radio f...
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