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WO/2020/057187A1 |
An Optical Line Terminal (OLT) includes a downstream transceiver coupled to a Passive Optical Network (PON). The downstream transceiver is configured to communicate over a plurality of bonded channels. The OLT also includes an upstream t...
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WO/2020/057981A1 |
A decoder for determining an estimate of a vector of information symbols carried by optical signals propagating along a multi-core fiber in an optical fiber transmission channel according to two or more cores. The decoder is implemented ...
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WO/2020/054614A1 |
In order to provide a path switching apparatus capable of continuing communication by operation corresponding to the state of occurrence of a failure, this path switching apparatus is configured to be provided with a first switching devi...
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WO/2020/052556A1 |
A method of communication includes receiving, by an optical line terminal (OLT), a registration request from an optical network unit (ONU) through a specific upstream wavelength, assigning, by the OLT, out of a plurality of normal servic...
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WO/2020/054393A1 |
The digital coherent receiver is provided with: an adaptive equalizer for executing adaptive equalization of a digital signal corresponding to a signal by using a first tap coefficient; a first coefficient update unit for updating the fi...
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WO/2020/056005A1 |
A system and method of creating frames comprised of blocks, where each block comprises data symbols corresponding to a higher order quadrature modulation format and support symbols corresponding to a lower order modulation format. One or...
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WO/2020/049791A1 |
This optical transmission device carries out wavelength filtering of an optical signal while preventing filtering-related constriction. A branching unit (1) branches a wavelength-multiplexed optical signal (SIN) including an optical sign...
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WO/2020/049440A1 |
An optical transmitter (102,200) is operable to generate an optical signal (260) by modulating a number N of frequency divisional multiplexing (FDM) subcarriers using transformed digital signals which are determined by applying a pseudo ...
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WO/2020/041953A1 |
The embodiments of the present application relate to the technical field of optical communication, and provided thereby are light receiving and combined transceiving components, a combined optical module, a communication device and a PON...
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WO/2020/043318A1 |
A method for scheduling resources for a Wavelength Division Multiplexed, WDM, Passive Optical Network, PON. The WDM PON comprises a central hub (201) and a plurality of remote Optical Network Terminals, ONTs, (220) handling different typ...
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WO/2020/041977A1 |
Disclosed are a multi-mode optical network terminal (ONT) and a passive optical network (PON) system, which relate to the field of optical networks and solve the problem of a relatively complicated ONT upgrade operation. The specific sol...
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WO/2020/044198A1 |
A near-eye display includes a light- guide optical element (LOE) (10) having first and second major external surfaces (11A, 11B) that are planar and mutually parallel. An image projector (2) introduces into the LOE illumination correspon...
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WO/2020/039519A1 |
The present invention is provided with: a coherent receiver (12) that performs coherent detection of polarization multiplexed light in which first polarization light and second polarization light are multiplexed, and that separates the p...
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WO/2020/040854A2 |
An integrated-optics MEMS-actuated beam-steering system is disclosed, wherein the beam-steering system includes a lens and a programmable vertical coupler array having a switching network and an array of vertical couplers, where the swit...
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WO/2020/035015A1 |
Methods and systems are described for training a machine learning (ML) model to predict the gain of a target channel of a multi-channel amplifier device. An ML model may be pre-trained using an existing set of training objects. The train...
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WO/2020/032016A1 |
The purpose of the present invention is to provide an intermode loss difference compensation fiber, an optical amplifier, and a transmission path design method which make it possible to reduce an MDL while eliminating the need for precis...
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WO/2020/033783A1 |
A system and method for extending the path length of an electromagnetic wave signal traveling between apertures is disclosed. One such system may comprise N arrays having M1 through MN apertures, respectively, wherein N ≥ 2, M1 ≥ 2, ...
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WO/2020/031477A1 |
[Problem] To provide a novel optical network which can be used as an in-vehicle optical backbone network and exhibits high capacity, low delay, low power consumption, low noise and low cost. [Solution] An optical network system, wherein:...
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WO/2020/030847A1 |
In accordance with an example embodiment of the present invention, there is provided an apparatus (160) comprising two inputs configured to receive two optical signals from two fibres (155, 157) from two respective optical transmitters, ...
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WO/2020/024840A1 |
A wavelength switching apparatus and system, comprising M input components, a first optical component, a first switch array, a second switch array, a second optical component, and K output components. By providing the first switch array ...
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WO/2020/028716A1 |
An apparatus comprising a cavity having interior surfaces or reflecting elements, one or more transmitters configured to receive an electrical signal, transform the electrical signal into an electromagnetic wave signal, and introduce the...
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WO/2020/028859A1 |
An optical network communication system utilizes a coherent passive optical network (PON). The system includes an optical line terminal (OLT) having a downstream transmitter and an upstream receiver system configured for time-wavelength ...
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WO/2020/028077A1 |
Disclosed herein are wavelength-division multiplexing devices using different angles of incidence (AOIs) at the WDM filters to provide for variable placement and orientation of WDM filters and channel ports, thereby decreasing the device...
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WO/2020/020991A1 |
Method and system for transmitting information from a transmitting location, comprising: a multimode connection having an input located at said transmitting location and having an output located at said receiving location, coherent light...
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WO/2020/020339A1 |
Embodiments of the present invention provide a line card and a design method therefor, a communication control method and device, and a storage medium. The method comprises: performing classification processing on a first standard signal...
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WO/2020/019659A1 |
The present invention relates to the technical field of optical communications, and in particular, to a DWDM remote pumping system capable of improving an OSNR. Said system comprises a remote pumping gain unit, a preamplifier, and a gain...
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WO/2020/023343A1 |
Disclosed herein are methods for patterning two-dimensional atomic layer materials, the methods comprising: illuminating a first location of an optothermal substrate with electromagnetic radiation, wherein the optothermal substrate conve...
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WO/2020/019845A1 |
The embodiments of the present application disclose an OAM message transmission method, a sending device, a receiving device, and a readable storage medium. The method comprises: determining first code block information of a code block o...
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WO/2020/018520A1 |
Systems and methods for performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM) are provided. The ROADM can include a ROADM block having a plurality of internal ports c...
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WO/2020/013697A1 |
A laser device for optical communication comprises a first laser unit connected to a first optical fiber for supplying a transmission laser beam thereto. wherein the laser device is configured for providing a reference laser beam in addi...
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WO/2020/013096A1 |
This optical amplification relay system comprises an optical fiber for propagating multi-propagation-mode light, and an optical amplification relay for amplifying light propagating through the optical fiber. The optical amplification rel...
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WO/2019/242590A1 |
Provided in the embodiments of the present application are an optical network apparatus and an optical module. The optical network apparatus comprises: a processing chip, a first optical transmission assembly and a second optical transmi...
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WO/2019/243809A1 |
An input device for a multiple wavelength band optical switch comprising: an optical demultiplexer configured to receive light and disperse the received light along a dispersion axis; and a light director configured to direct light in a ...
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WO/2019/235392A1 |
Provided is a low-loss optical switch device for realizing a node device that transfers an optical signal of an optical line exchange system and an optical signal of an optical packet exchange system. The optical switch device is dispose...
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WO/2019/233177A1 |
Disclosed in embodiments of the present application are a method, device and system for enabling and disabling a wavelength channel pre-coding function of a passive optical network, wherein a plurality of downlink wavelength channels and...
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WO/2019/233543A1 |
An optical device (100) for an optical network, comprising an optical input (110), a passive optical component (112), a memory device (114) for storing information relating to the passive optical component. The optical device further com...
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WO/2019/233613A1 |
A method and apparatus for determining the location of a fault along an optical fibre is provided. The apparatus comprises a port arranged to at least one of output optical traffic and receive optical traffic. The apparatus also comprise...
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WO/2019/235321A1 |
[Problem] To reduce filter penalty caused by narrowing of an optical signal band due to an optical filter having a multiplexing/demultiplexing function in an optical transmission path between transponders. [Solution] An optical transmiss...
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WO/2019/230561A1 |
[Problem] To improve an Add/Drop ratio while suppressing the device scale of an ROADM. [Solution] Provided is an ROADM equipped with a wavelength cross-connect unit connected to a plurality of paths; and a transponder housing function un...
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WO/2019/230480A1 |
This optical transmission system is provided with: an optical transmitter; an optical receiver; and a control device. The control device repeatedly carries out an adjustment process for adjusting power of an optical signal in a frequency...
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WO/2019/228201A1 |
The present application provides a service data processing method and apparatus, for use in solving the problem of resource waste existing in the prior art. In the present application, in order to be applicable to a low-rate service, a d...
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WO/2019/223000A1 |
The present application provides a method and a device for transmitting data. The method comprises: a network apparatus processing an optical data unit (ODU) to be transmitted to obtain another ODU having a bitrate lower than a bitrate o...
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WO/2019/224335A1 |
The invention concerns a device (1, 101) for analyzing the modes of a multi-mode fiber, wherein
the input of the device is a part of a multi-mode fiber (2, 102), the multi-mode fiber (2, 102) is spliced into a plurality of single- mod...
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WO/2019/218965A1 |
Disclosed in the present application are a data processing method and device and a communication system, the method comprising: a source network device receiving S first data blocks in a physical coding sub-layer, adding first informatio...
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WO/2019/218535A1 |
The present invention relates to the field of OTN device management. Disclosed are a method and system for automatically adjusting the optical power of a cable based on an optical channel trail. The method comprises: constructing an adju...
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WO/2019/220613A1 |
A management device (100) connects to an optical mesh network that includes: a plurality of nodes for which the path of a light signal can be switched; and an optical transmission path which mutually connects the plurality of nodes. The ...
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WO/2019/219215A1 |
A method (100) is disclosed for filtering an optical signal to generate at least one electrical output. The method comprises receiving an optical signal (110) and directing at least a part of the optical signal through an n x m array of ...
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WO/2019/208413A1 |
In order to suppress narrowing of the bandwidth of an optical signal which occurs when multiplexing/demultiplexing devices are disposed in multiple stages, the optical transmission device is provided with: first multiplexing devices each...
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WO/2019/204960A1 |
A method and a system for measuring photon orbital angular momentum mode based on spiral transformation: by means of a phase plate (1) positioned on an input plane, mapping an incident light field along a helical path on the input plane ...
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WO/2019/205173A1 |
A wireless access network, a construction method therefor, and a communication device. The wireless access network comprises two communication devices, two multiplexer/demultiplexer units, and an optical fiber. The first communication de...
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