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WO/2015/162875A1 |
Since it is difficult, due to the occurrence of fragmentation of optical frequency bands, to improve the usage efficiency of optical frequency bands in an optical network that uses a dense wavelength division multiplexing method using a ...
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WO/2015/164037A1 |
Systems and methods for detecting laser transmission bursts in a CATV network.
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WO/2015/164799A1 |
Embodiments are provided for scalable photonic packet fabric architectures using photonic integrated circuit switches. The architectures use compact size silicon photonic circuits that can be arranged in a combined centralized and distri...
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WO/2015/160073A1 |
An optical module device is disclosed. That is, an optical module device is formed in which two bidirectional integrated optical elements for transmitting and receiving optical signals by using two wavelength bands are integrated into on...
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WO/2015/157964A1 |
An optical signal to noise ratio (OSNR) monitoring method and device, ensuring accuracy of OSNR monitoring; the method comprises: coupling signals under test with specific noise signals to generate combined signals; the specific noise si...
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WO/2015/157599A1 |
A method of optical label swapping implemented by a switch used in a software defined network system that in one embodiment includes proving a 400-Gbit/s payload having a Nyquist shaped carrier in a 75-Ghz bandwidth spacing using a paylo...
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WO/2015/154269A1 |
Disclosed in an embodiment of the present invention is an array waveguide grating (AWG), comprising: W input waveguides, M array waveguides, a first free propagation region (FPR), a second FPR, one output waveguide, and W monitoring wave...
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WO/2015/155215A1 |
Embodiments relate to an apparatus, a method and a computer program for receiver of an optical signal. The apparatus (10) is operable to input digitized samples of the optical signal at a first sampling rate. The apparatus (10) is furthe...
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WO/2015/155168A1 |
A method for setting the power of a plurality of optical signals (25, 26, 27, 28, 29) in an optical network (99), including: allocating an initial power value (23) for each optical signal of the plurality of optical signals, selecting a ...
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WO/2015/150355A1 |
A method for provisioning optical connections in an optical network (118), the method comprises: - providing a plurality of connection demands, - selecting working paths (6) and provisioning working optical connections for satisfying all...
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WO/2015/144195A1 |
An optical communications network has an interconnecting node (100) coupled in between at least one hub node (130) and at least first (140) and second (150) access nodes, to provide working and protection optical paths. The interconnecti...
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WO/2015/145984A1 |
The present invention provides an optical transmission device, etc., which is capable of flexibly changing the wavelength of a monitoring control light. This optical transmission device is characterized in being provided with a plurality...
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WO/2015/146106A1 |
[Problem] To provide an optical transmission/reception device, an optical communication system, an optical communication method, and a program which are capable of securing the confidentiality of information included in an optical signal...
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WO/2015/143730A1 |
Disclosed is a method for monitoring the wavelength of a turnable laser device of a client by means of a local side optical line terminal. The method is applied to a wavelength division multiplexing passive optical network framework. The...
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WO/2015/147991A1 |
A wavelength assignment system in one embodiment includes an upstream port, a sensor port, and a downstream port. The upstream port is configured to receive a transmitted signal including a drive component and a read component comprising...
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WO/2015/144346A1 |
Proposed is a method of equalizing an optical signal that has an overall bandwidth formed on a number of adjacent spectral slots, wherein the signal comprises a set of non-overlapping subcarrier signals. A distribution of the subcarrier ...
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WO/2015/146105A1 |
[Problem] To provide an optical communication device and the like with which the optical signals output by multiple light output units can be set with an accurate wavelength interval. [Solution] An optical communication device equipped w...
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WO/2015/146107A1 |
[Problem] To provide an optical communication device, an optical communication system, an optical communication method, and a program with which the confidentiality of information included in an optical signal can be ensured even when th...
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WO/2015/145985A1 |
The present invention provides an optical relay device, etc., capable of outputting control signal light without being provided with a light source for the control signal light and also capable of flexibly managing and changing the wavel...
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WO/2015/140703A1 |
Described herein is a multiplexer/demultiplexer optical device (100) comprising: a first beam-splitter cube (BS1); a second beam-splitter cube (BS2) optically coupled to the first splitter (BS1); a first Porro-prism reflector (PR1), whic...
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WO/2015/139218A1 |
Disclosed in the embodiments of the present invention is a PON system supporting multi-protocol ONU registration, comprising an OLT and ONUs, the OLT connecting by means of an ODN to a plurality of ONUs based on different MAC protocols a...
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WO/2015/140037A1 |
Disclosed herein is a dual parallel Mach-Zehnder-modulator (DPMZM) device comprising a DPMZM 10 having first and second inner MZMs arranged parallel to each other. The first inner MZM generates an in-phase component EI of an optical sign...
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WO/2015/140255A1 |
A method for measuring a packet delay in an optical node of a synchronous network, the method comprising : splitting the input optical signal, shifting in time the second optical signal of one timeslot the method further comprising, for ...
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WO/2015/139593A1 |
An apparatus comprises a digital signal processing module configured to receive a data stream and generate a plurality of digital multiple tones, a plurality of digital-to-analog converters coupled to the digital signal processing module...
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WO/2015/135695A1 |
The present document relates to an optical multiplexing system (500a) comprising: - a first multiplexer (510) comprising a first input (511 ) for receiving a first optical channel set comprising one or more optical channels of an optical...
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WO/2015/136530A1 |
A multi-port access node, for communicating data to-and-fro a plurality of transceiver units via a plurality of respective communication lines, comprising: a plurality of processors, each processor includes a main communication unit that...
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WO/2015/138492A1 |
An example embodiment includes a system for communicating an optical signal. The system includes an optical transmitter and an optical receiver. The optical transmitter includes one or more lasers configured to produce a light signal and...
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WO/2015/136572A1 |
In conventional spatial optical communication receiving apparatuses, coupling efficiency of receiving light and a single mode fiber has not been prevented from deteriorating, and it has been difficult to increase transmission rate. This ...
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WO/2015/134393A1 |
Described herein is a calibration system (25) for a wavelength selective switch (1). The switch (1) is adapted for dynamically switching optical beams (5, 7) along respective trajectories between input and output ports disposed in an arr...
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WO/2015/131360A1 |
Provided are a method, device and system for link switching, which relate to the field of communications, provide a link switching mechanism, and realize rapid linkage switching between inter-device links. The specific practice thereof i...
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WO/2015/131270A1 |
Wavelength division multiplexing (WDM) has enabled telecommunication service providers to fully exploit the transmission capacity of optical fibers. State of the art systems in long- haul networks now have aggregated capacities of terabi...
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WO/2015/131908A1 |
The invention relates to an all-optical orthogonal frequency division multiplexing (OFDM) transmitter for generating an OFDM output signal. The transmitter comprises a first time-domain optical Fourier transform (OFT) assembly, the first...
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WO/2015/131271A1 |
Unlike most MEMS device configurations which simply switch between two positions in many optical devices the state of a MEMS mirror is important in all transition positions. It may determine the characteristics of an optical delay line s...
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WO/2015/134407A1 |
Systems and methods for delivering multiple passive optical network services are disclosed. One system includes a first optical transmission service comprising a common wavelength pair routed from a source to each of a plurality of subsc...
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WO/2015/131502A1 |
Disclosed are a device and method for all-optical inverse multiplexing based on a variable bandwidth optical network. The device comprises: one or more multicast modules, a first-level bandwidth variable-wavelength selective switch (BV-W...
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WO/2015/131380A1 |
The present invention relates to the field of communications. Disclosed are a data processing method and device being capable of reducing time delay and energy consumption of data processing during data interaction in an optical network....
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WO/2015/127606A1 |
The present invention provides a passive optical network system, and a passive optical network protection method and device. The passive optical network system comprises a first filter, a second filter, a first reflector, a second reflec...
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WO/2015/128476A1 |
An optical switching node (2) in a multi-core fiber (4) network, comprising: - an input section for receiving spatially multiplexed optical signals, each optical signal comprising wavelengths multiplexed optical packets, - a controller (...
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WO/2015/129472A1 |
Provided is an optical network which makes it possible to increase frequency use efficiency of an optical signal when transmitting wavelength division multiplexed light. One or more optical path cross connection devices (OXC) through whi...
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WO/2015/129290A1 |
10 Gbps client signals (1a)-(1c) processed by each of a 10 Gbps transponder (3a), a 40 Gbps transponder (3b), and a 100 Gbps transponder (3c) are branched to an M:N switch (40) by optical couplers (2a)-(2c). The M:N switch (40) selects o...
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WO/2015/129194A1 |
Since it is difficult to improve the wavelength-band utilization ratio of an optical network as a whole while operating said optical network in a stable manner, this optical-network control device is provided with the following: an optic...
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WO/2015/127780A1 |
Disclosed are an OTN (Optical Transport Network) system and method for supporting single-fiber bidirectional transmission of supervisory channel light, which relate to the field of OTN networks. The system comprises an upstream site and ...
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WO/2015/123970A1 |
The embodiments of the present invention provide a frequency offset estimation method and device and a frame synchronization subsystem. The method comprises: performing hard decisions on I-channel and Q-channel soft data corresponding to...
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WO/2015/124174A1 |
There is provided a security device for an optical network, in particular for a radio access network. The security device comprises an input adapted to receive a client optical signal to be transmitted over an optical network. The securi...
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WO/2015/120903A1 |
An optical carrier selector system is provided for selecting a wanted carrier signal (fw) from a multi-carrier signal comprising a plurality of carrier signals (f1-fN). The optical carrier selector system comprises a series of optical fi...
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WO/2015/120895A1 |
The present invention provides a method and apparatus for detecting whether an optical fibre inside an optical node is disconnected or damaged. The optical node comprises an optical amplifier arranged to amplify optical traffic to be tra...
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WO/2015/120894A1 |
The present invention relates to a method and apparatus for upgrading an optical node in an installed WDM optical network comprising a plurality of frequency channels each having a predetermined bandwidth. The optical node is configured ...
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WO/2015/120087A1 |
Chromatic dispersion is pre-compensated in a direct-detected orthogonal frequency-division multiplexed optical transmitter through digital signal processing methods, to generate signals that can be transmitted over an optical fiber. The ...
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WO/2015/114800A1 |
This invention provides a light transfer apparatus and a light transfer method wherein a pair of phase conjugation signals can be transferred without degradation of frequency utilization efficiency and combined on a reception side with t...
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WO/2015/112508A1 |
An optical line terminal (OLT) coupled to a plurality of optical network units (ONUs) through a passive optical network (PON). The OLT includes a transceiver configured to communicate via a management channel of a communication network w...
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