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WO/2017/061184A1 |
The present embodiment relates to a MCF and the like wherein the strength of mode coupling or power coupling between adjacent cores included in a single coupled core group is set to an appropriate level for reducing DGD. The MCF includes...
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WO/2017/059393A1 |
A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave lase...
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WO/2017/058070A1 |
A network architecture for an optical communication network, an optical communication network configured according to the network architecture and use of an MD-WSS are provided. The network comprises at least a first ODN, an MD-WSS havin...
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WO/2017/055848A1 |
An optoelectronic switch for switching a signal from an input device to an output device includes a plurality of switch modules, each connected or connectable to an optical interconnecting region, wherein: each switch module is configure...
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WO/2017/056438A1 |
In order to provide a compact and low power consumption optical relay capable of amplifying a plurality of wavelength ranges, the optical relay is provided with: an excitation means which generates excitation light in a single wavelength...
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WO/2017/050393A1 |
A device (100) for processing a signal, the device comprising a polarization module (102) configured to receive a multi-wavelength optical input signal (Si) comprising a plurality of wavelengths, and for each wavelength. The polarization...
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WO/2017/053957A1 |
A communication platform includes a wired communication trunk having a first end and a second end. A first acknowledgement device is coupled to the first end of the wired communication trunk. A second acknowledgement device is coupled to...
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WO/2017/051158A1 |
We describe a wavelength division multiplexed (WDM) reconfigurable optical switch, the switch comprising: at least one optical input port to receive a WDM input optical signal comprising a plurality of wavelength channels; a plurality of...
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WO/2017/050886A1 |
A method of compensating for crosstalk in a mode division multiplexing passive optical network using a technique of transmitter-side crosstalk pre-compensation, e.g. performed at the Central Office (CO), in which a downlink reference sig...
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WO/2017/051157A1 |
We describe a wavelength division multiplexed (WDM) reconfigurable optical switch, the switch comprising: a set of arrays of optical beam connections, each comprising an array of optical outputs and having an optical input to receive a W...
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WO/2017/049444A1 |
Provided are a port matching method and apparatus. The method comprises: a head end equipment (HEE) respectively sending, to n items of tail end equipment (TEE), a first pilot frequency parameter, a first scanning parameter and a scannin...
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WO/2017/050942A1 |
A fault tolerant optical apparatus resilient to ballistic impact damages, capable of enabling distributed processing and networking and using the spectrophotometric transmission properties of polymer film. The invention relates to the te...
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WO/2017/048899A1 |
An orthogonal frequency division multiplexing (OFDM) transmitter is able to communicate simultaneously with a simple direct detection receiver and also with a coherent receiver. The transmitter transmits a polarization multiplexed self-c...
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WO/2017/045874A1 |
A lithographic apparatus includes an alignment sensor configured to determine the position of an alignment target comprising a periodic structure. The alignment sensor includes a demultiplexer (700) to demultiplex a number of intensity c...
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WO/2017/041210A1 |
A method, device and system for passive optical network communication are provided by the embodiments of the present invention. Said method comprises determining a wavelength channel group of an optical network unit (ONU) and wavelength ...
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WO/2017/041743A1 |
An apparatus in a passive optical network (PON) is configured to modify a preamble of a data packet to include channel bonding information. The apparatus may further fragment the data packet into a plurality of data frames and transmit t...
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WO/2017/041222A1 |
An OADM node in a WDM system and a method, being capable of dynamically controlling the add wavelength of the OADM node, enabling the WDM system to have the ability of dynamic reconstruction, thereby improving the flexibility of the WDM ...
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WO/2017/041829A1 |
A method (10) of transmitting communications traffic, the method comprising steps of receiving a sequence of communications traffic bits (12); and mapping the sequence of communications traffic bits onto a respective one of a plurality o...
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WO/2017/039115A1 |
Disclosed are: a fronthaul control device capable of variably controlling the allocation of an optical wavelength band by adjusting a center wavelength of an optical signal; an operating method of the fronthaul control device; a program ...
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WO/2017/039781A2 |
Systems and methods supporting high performance real time pattern recognition by including time and regional multiplexing using high bandwidth, board-to-board communications channeis, and 3D verticai integration. An array of processing b...
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WO/2017/036178A1 |
Disclosed in the present text are a method and device for statistically multiplexing an optical transport network. The method comprises: in the Optical Transport Network (OTN), a packet service being mapped to different flexible optical ...
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WO/2017/033223A1 |
Provided are an optical communication control device and method which use a plurality of sub-carriers to set an optical path within a network. In order to effectively use fragmented wavelengths by allocating sub-carriers to available wav...
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WO/2017/028158A1 |
Disclosed are a signal transmission method, apparatus and system. The method comprises: each input port of a first mode multiplexer receives a first optical signal; the first mode multiplexer generates a second optical signal according t...
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WO/2017/028803A1 |
Provided are an OLT optical transceiver module, and a method and system for processing a plurality of PONs. The OLT optical transceiver module comprises: a second downlink transmitting unit configured to receive a second path of electric...
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WO/2017/029817A1 |
A communication device 1 according to the present invention is provided with: an optical transmitter/receiver 12-1 which adds a first frequency fluctuation to an optical signal having a first optical frequency, and transmits said optical...
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WO/2017/029753A1 |
A communication device 1 according to the present invention is provided with: an optical transmitter/receiver 12-1 which adds a first frequency fluctuation to an optical signal having a first optical frequency, and transmits said optical...
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WO/2017/028873A1 |
An interconnection network 40 comprising: an ingress stage 10 comprising M switch cards 12 each comprising an ingress electrical switch matrix and electrical-to-optical, E-O, conversion apparatus to convert a plurality of electrical sign...
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WO/2017/031072A1 |
An optical receiver, used in wavelength-division multiplexing, has multiple photodetectors per channel. The optical receiver comprises a demultiplexer to separate incoming light into different output waveguides, one output waveguide for ...
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WO/2017/027842A1 |
In an example embodiment, an N-channel WDM OSA includes active optical devices coupled to a carrier, an optical block, and a MUX or a DEMUX. The optical block may be positioned above the active optical devices and coupled to the carrier....
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WO/2017/024428A1 |
Provided are an apparatus and method for optical communications. The apparatus comprises: a signal output port; a signal input port, used for outputting signal light; a detection input port, used for outputting detection light; an optica...
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WO/2017/027042A1 |
In the examples provided herein, a system has a plurality of arrayed waveguide gratings (AWG) having a plurality of input ports and a plurality of output ports. A signal within a given wavelength channel transmitted to one of the input p...
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WO/2017/025876A1 |
The invention relates to optical communication methods and systems. In particular, the invention relates to an optical communication method and system which is configured to create a multiplexed beam from an incident beam, wherein the mu...
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WO/2017/021888A1 |
It is disclosed an optical device (1) for demultiplexing a plurality of channels with different wavelength (λ1, λ2, λ3) and different orbital angular momentum (I1, I2, I3). The device comprises a first diffractive optical element (1 -...
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WO/2017/023384A2 |
An optical receiver includes a cascade of optical filtering elements, each of which selects spectral components from incoming optical signals at a wavelengths aligned to filter passbands. The selected spectral components may be optically...
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WO/2017/022231A1 |
In order to improve the reliability of a reconfigurable optical add/drop multiplexing (ROADM) device, provided is an optical add/drop multiplexing device that comprises the following: a first wavelength selection unit and a second wavele...
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WO/2017/017069A1 |
Provided is a method, system and apparatus for optical communications with encoded phase-conjugated twin wave or optical variant dual polarization optical signals through non-linear optical channels. A method of optical communication for...
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WO/2017/019898A1 |
This disclosure provides systems, methods, and apparatus for improving spectral efficiency of a communication system. The communication system can include a transmitter, a receiver and a communication link for communicating data between ...
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WO/2017/016592A1 |
According to the present invention, there is provided apparatus for providing protection of an optical link. The apparatus comprises a first port for coupling to the optical link and a second port for coupling to a further optical link. ...
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WO/2017/006568A1 |
The invention relates to a method for controlling access to an out-of-band communication channel in an optical communications network comprising a master device and slave devices connected to the master device via optical fiber, the opti...
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WO/2017/006569A1 |
The invention relates to a method for detecting collisions in an out-of-band communication channel, implemented by a master device of an optical communications network enabling in-band communications and further comprising slave devices....
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WO/2017/007749A1 |
A passive optical network and a wavelength selective two-port reflector for use therein are provided. The wavelength selective two-port reflector comprises a common port, a pass-through port, and pair of optical filters that (i) retro-re...
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WO/2017/000992A1 |
It is disclosed a optical transmitter for an optical network unit of a multi- wavelength passive optical network comprising an optical line termination and a number of further optical network units for transmitting upstream signals to sa...
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WO/2017/002322A1 |
In order to measure an optical signal to noise ratio while reducing influence on a communication environment in an optical communication system using a wavelength multiplexed signal, a communication device is provided with: an optical mu...
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WO/2017/000445A1 |
The present invention relates to the technical field of construction of optical networks, and in particular, to a design method for a quasi-coarse wavelength division multiplexing optical network. In the design method, a spectral grid of...
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WO/2017/001235A1 |
A method for optical communication in a bidirectional optical communication network is proposed. The network comprises a plurality of optical line terminals which communicate with a plurality of optical network units over an optical dist...
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WO/2016/206111A1 |
A method and apparatus for routing signals through a photonic switch are provided. Optical Signal-to-Noise Ratio (OSNR) requirements for signals to be concurrently routed through the switch are determined, and incoming signal routing req...
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WO/2016/207657A1 |
A mode division multiplexing passive optical network (PON) in which channel estimation/inversion is performed in the optical domain. The PON comprises a plurality of input channels; a multiplexer having a plurality of input ports connect...
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WO/2016/206469A1 |
A cross time slot connection configuration method and device, the method comprising: acquiring single board information, input/output port information, scheduling port information and a layer level relationship between the above three; c...
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WO/2016/206031A1 |
An all-optical switching node is disclosed by an embodiment of the present invention, which is used for reducing the punch-through blocking of an optical signal. The method in an embodiment of the present invention comprises: a wave demu...
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WO/2016/205996A1 |
Provided are a phase estimation method and device of a polarization multiplexing system. The method comprises: performing, by a receiving terminal and according to a last polarization rotation angle, polarization rotation on a received f...
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