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Matches 1 - 50 out of 16,561

Document Document Title
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...  
WO/2018/171879A1
A method in a first level aggregation node of a transport network is disclosed. The transport network comprises the first level aggregation node, a second level aggregation node and a Passive Optical Network. T the method (600) comprises...  
WO/2018/175946A1
An optical network communication system utilizes a passive optical network including an optical hub having an optical line terminal, downstream transmitter, an upstream receiver, a processor, and a multiplexer. The upstream receiver incl...  
WO/2018/170828A1
Disclosed in the embodiments of the present invention are a bidirectional optical assembly, an optical network unit, an optical line terminal, and a passive optical network system, relating to the technical field of optical communication...  
WO/2018/171621A1
A computer-implemented method of requesting a path on a flexi-grid network comprises: sending, by a path computation client (PCC), a request for a path to a path computation element (PCE), the request including the request including: a l...  
WO/2018/166381A1
Embodiments of the present invention provide an optical signal power control method and device, and an optical line terminal. The method comprises: acquiring different time points when uplink optical signals of optical network units (ONU...  
WO/2018/166330A1
A wavelength selective switch (WSS), reconfigurable optical add-drop multiplexer (ROADM) and methods of determining a condition of a domain network section are provided. The WSS and ROADM include a light source for sending an optical sig...  
WO/2018/169577A1
A reconfigurable optical add/drop multiplexer (ROADM) includes a plurality of interconnected ROADM blocks. Each ROADM block includes an ingress switchable-gain amplifier, an output power detector coupled to an output of the ingress switc...  
WO/2018/166920A1
A method for operating a communications network node; in which the node comprises a first amplified optical section and a second non-optical section; in which the method comprises: receiving at the node, a first optical channel at a firs...  
WO/2018/168598A1
[Problem] To provide a receiver which is capable of receiving an arbitrary spatially multiplexed optical signal and a multimode optical signal. [Solution] A receiving device according to the present invention includes: a local light gene...  
WO/2018/164035A1
Provided are an optical communication system and an optical frequency control method which, even when sufficient band characteristics of an optical reception front-end cannot be ensured, make it possible to suppress degradation of recept...  
WO/2018/164895A1
An apparatus includes an optical data modulator, an electrical timer located to control an operating wavelength of the optical data modulator, a photo- sensitive diode or photo- sensitive transistor, and an electronic feedback controller...  
WO/2018/165085A1
Aspects of the present disclosure describe systems, methods, and structures for providing bidirectional C-band and L-band transmission employing optical circulators which advantageously eliminates C\L WDM couplers while still blocking an...  
WO/2018/154947A1
The purpose of the present invention is to provide an optical relay system that enables an increase in the number of optical fibers. An optical relay system (10) according to the present invention is provided with: a first relay (11) hav...  
WO/2018/156752A1
A method is provided for determining the gain spectrum of an optical amplifier such as an erbium doped optical amplifier (EDFA). In accordance with the method, an optical amplifier such as an EDFA that is to accommodate a specified numbe...  
WO/2018/149557A1
The invention relates to a distributed antenna system (DAS) and methods of configuring the DAS. In a first aspect of the invention, a method of configuring a digital DAS (100) is provided comprising a plurality of digital remote units (1...  
WO/2018/141275A1
A wavelength-division multiplexing (WDM) optical assembly (210) with increased lane density is disclosed herein. The WDM optical assembly (210) includes a WDM optical core subassembly (200) including an optical signal router (206) for ro...  
WO/2018/141274A1
A wavelength-division multiplexing optical assembly (200) with multiple collimator sets (214A-214B) is disclosed. The WDM optical assembly (200) includes at least one optical signal router (206), at least one WDM filter (208A), and a fir...  
WO/2018/142276A1
A photonic neural component including optical transmitters, optical receivers, inter-node waveguides formed on a board, multiplexers configured to multiplex input optical signals onto the inter-node waveguides, transmitting waveguides co...  
WO/2018/142907A1
The present invention reduces the cost for operating an optical path network by reducing the number of cores of an optical fiber, or reducing equipment cost for an optical switch or the like and reducing rack space for installing same. A...  
WO/2018/137154A1
Provided are a communication method, device and system for a passive optical network (PON). The PON comprises an optical line terminal (OLT) and a first optical network unit (ONU). The method comprises: the OLT communicating with the fir...  
WO/2018/137818A1
Disclosed is a service provisioning tool and method for determining favorable implementations of a service in a grid-less optical network, wherein said service provisioning tool is configured to assign total cost values to a given implem...  
WO/2018/140396A1
In an improved wavelength-division multiplexed system, transmitters modulate carrier signals that are phase or frequency correlated with each other. Receivers retrieve transmission data from the modulated carrier signals by demodulating ...  
WO/2018/139410A1
In order to reduce a transmission delay in an optical network, an optical network control device includes: a database that holds information for setting a route and a transmission scheme when transmitting, by using a plurality of optical...  
WO/2018/134014A1
The present invention discloses methods for compensating crosstalk in the optical communication system (100, 200). In order to simplify the calculation required for the crosstalk compensation in joint DSP, according to one aspect of the ...  
WO/2018/136964A1
An optical access network includes an optical hub having at least one processor. The network further includes a plurality of optical distribution centers connected to the optical hub by a plurality of optical fiber segments, respectively...  
WO/2018/133129A1
A device for receiving RF signal is provided. The device includes a receiving component configured to receive a radio frequency (RF) signal and a sampling component configured to sample the RF signal. The sampling component may include a...  
WO/2018/134889A1
A communication device (1) is characterized by being provided with a plurality of optical transmitters/receivers (11-1, 11-2, 11-3) for outputting an optical signal, an optical coupler (12) for combining a plurality of optical signals di...  
WO/2018/130362A1
A method in a transceiver apparatus for monitoring an optical link over which one or more data signals are to be transmitted comprises time interleaving a test signal with an auxiliary management and control channel, AMCC, signal to form...  
WO/2018/131155A1
The present invention is provided with: a cross-connect setting unit (121A) for adjusting the intensity level per wavelength of an optical signal; an optical output level detection element (122A) for detecting the intensity level per wav...  
WO/2018/129565A1
Systems and methods are provided for an optical network unit (ONU) to automatically set its output power level for messages to be transmitted on a passive optical network. The ONU can autonomously determine the appropriate power level ba...  
WO/2018/123921A1
Provided is an optical signal processing device having a wavelength demultiplexing means that is designed individually with respect to each wavelength band, and equipped with a spatial light modulator and the like used in common for each...  
WO/2018/123718A1
[Problem] To obtain a reception device with which it is possible to perform optimum high-density wavelength multiplexing that conforms to a transmission condition and improve the efficiency of frequency utilization. [Solution] A receptio...  
WO/2018/120194A1
Embodiments of the present application relate to the field of communications. Provided are a method and apparatus for generating a wavelength routing network topology, which can resolve the problem of a difference existing between a phys...  
WO/2018/122146A1
A wavelength selective switching device comprises a plurality of input paths for receiving optical signals, a plurality of output paths for emitting the optical signals, and a switching unit for selectively directing the optical signals ...  
WO/2018/121919A1
The proposed invention is in the area of managing resources in optical transport networks, for example in the area of in-operation media channel format and spectrum management. For this purpose, the type of Media Channel Format is determ...  
WO/2018/123717A1
[Problem] To obtain a reception device with which it is possible to stably perform communication in which subcarriers are multiplexed at intervals less than or equal to a baud rate. [Solution] A reception device 20 is configured as being...  

Matches 1 - 50 out of 16,561