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Matches 1 - 50 out of 16,860

Document Document Title
WO/2019/155990A1
This optical node device is provided with: one or more input-side wavelength selection switches; a plurality of output-side wavelength selection switches; and an optical amplification unit. The input-side wavelength selection switches ea...  
WO/2019/154512A1
There is provided an apparatus (130) for fiber optic line continuity detection. The apparatus (130) comprises an optical input (382) connectable to a first optical fiber (242) of a fiber optic line (140), an optical output (384) connecta...  
WO/2019/148264A1
A tunable optical filter includes sequentially coupled Mach-Zehnder (MZ) interferometers. The first and last interferometers are configured to function as variable power splitter / combiner, whereas the middle interferometer or interfero...  
WO/2019/149993A1
A passive optical network (100) having an optical-signal monitor (180) configured to monitor carrier- wavelength drifts during optical bursts transmitted between the optical line terminal (110) and optical network units (1601 - 160N) the...  
WO/2019/150509A1
[Object] It is therefore an object of the disclosure of this document to attain a data transmission system with a simple transmitter implementing polarization multiplexing using either DML or EAM and a receiver with only one PD. [Solutio...  
WO/2019/149342A1
An optical system (200,400) and method (10) for seeding an optical transmitter. The optical system (200,400) comprises a first optical transmitter (208,408) comprising a first reflective optical amplifier (210,410) and a second optical t...  
WO/2019/151067A1
The present invention provides an optical transmission device, a transmission system, and a control method for a transmission system which make it possible to adjust the wavelength band of dummy light according to the wavelength band of ...  
WO/2019/141168A1
A computer implemented method of configuring an optical path includes selecting with one or more processors a wavelength for the optical path, generating with one or more processors, a first request for a first type of node in the optica...  
WO/2019/140999A1
Disclosed in the present application are a wavelength division multiplexing optical transmission apparatus and system, and an implementation method, the wavelength division multiplexing optical transmission apparatus comprising a transmi...  
WO/2019/138246A1
There is presented an apparatus for use with a Wavelength Division Multiplexed Passive Optical Network (WDM-PON). The apparatus comprises an electronic controller, optical transmitters and a wavelength multiplexer. The electronic control...  
WO/2019/137734A1
An optical data transmission system and method for, at an optical transmitter: converting to a second wavelength, an optical data signal at a first wavelength; transmitting at the second wavelength, the optical data signal to an optical ...  
WO/2019/108547A9
Improved optical network configurations are described incorporating ROADM component structures that are compatible with simplified user transceivers. The ROADM component structures generally include a reconfigurable optical add/drop mult...  
WO/2019/136293A1
A system for analyzing an optical transport network is provided. The system can generate a linear OSNR and an output power profile for each optical link element of an optical link based on an input power profile, amplifier characteristic...  
WO/2019/129518A1
The invention relates to a device for manipulating a light radiation by reflecting said light radiation multiple times on at least two reflecting surfaces of a monolithic block made of homogenous transparent material. The device comprise...  
WO/2019/128934A1
The present application provides a service transmitting and receiving method and device in an optical transport network (OTN). The service transmitting method in the OTN comprises: mapping an optical data unit (ODU) service into a cell o...  
WO/2019/133417A1
A coherent optical receiver capable of receiving data encoded in optical bursts whose optical power can vary significantly from burst to burst. In an example embodiment, the coherent optical receiver comprises a variable optical attenuat...  
WO/2019/131804A1
An optical module that provides a semiconductor modulator, an input lens system and first and second output lens systems, and two monitor photodiodes is disclosed. The semiconductor modulator provides an input port, first and second outp...  
WO/2019/129158A1
Embodiments of the present application relate to the technical field of communications, and provide an optical receiving component, a combined transceiver component, a combined optical module, an optical line terminal, and a passive opti...  
WO/2019/125670A1
Disclosed herein is wavelength-division multiplexer with an internal optical signal tuned by a mounted signal pitch router. In particular, disclosed is a wavelength-division multiplexing (WDM) optical assembly including an optical signal...  
WO/2019/120270A1
Narrow linewidth multi-wavelength (MW) light sources (102) and related methods are disclosed. Such a light source (102) includes gain chips (104_1,104_2,...,104_N) coupled to a wavelength combiner and reflection chip (106) that includes ...  
WO/2019/126772A1
A device (e.g., a photonic multiplexer) is provided that includes a plurality of first switches. Each first switch in the plurality of first switches includes a plurality of first channels. Each first switch is configured to shift photon...  
WO/2019/116776A1
The purpose of the invention is to achieve a setting change in a control unit provided in a submarine optical transmission device that has been laid. An optical component (13) processes a main signal SM inputted from an optical transmiss...  
WO/2019/118911A1
An optical IQ demodulator that does not require a power-consuming DSP is disclosed. A DC offset is added to one of the I and Q optical signal components at an IQ transmitter. After mixing with an LO signal and differential detection at t...  
WO/2019/114646A1
The inclusion of a pilot tone as a modulation of an optical data signal reduces the optical signal to noise ratio (OSNR). Methods and apparatus for receiving an optical signal are provided that compensate for at least a portion of the pi...  
WO/2019/114942A1
Device (200,300) and method (500) for processing an optical signal. The device (200,300) comprises a photonic device (202,302) arranged between a first input/output (204,304) and a second input/output (206,306) and optically communicatin...  
WO/2019/114961A1
An optical link (100) for a communication network, the optical link comprising: an optical fibre link (102); a downstream transmitter (112), a downstream receiver (114), an upstream transmitter (122) and an upstream receiver (124), where...  
WO/2019/116019A1
A de-multiplexer (1) for separating two co-propagating modes of electromagnetic radiation includes a volume (2) having a path therethrough for receiving electromagnetic radiation, an input (8) for directing two co-propagating modes of el...  
WO/2019/112735A1
One embodiment of the present invention provides an optical transceiver. The transceiver can include a transmitter and a receiver. Each of the transmitter and receiver can include a plurality of space-division multiplexing (SDM) channels...  
WO/2019/108547A1
Improved optical network configurations are described incorporating ROADM component structures that are compatible with simplified user transceivers. The ROADM component structures generally include a reconfigurable optical add/drop mult...  
WO/2019/107471A1
In a configuration in which a coarse-granularity switching device is introduced to connect a terrestrial optical communication system and an undersea optical communication system, the rate of optical path allocation failure increases. To...  
WO/2019/100706A1
Disclosed in the present invention are a protection group superposition switching method, a control device and optical communication equipment, which implement multiple protection state machines by means of a field-programmable gate arra...  
WO/2019/103940A1
Parallel optical transponders with an optical comb source, and methods of using the same, are provided. The optical comb source can provide multiple optical carriers from a single source. The multiple optical carriers can be phase-aligne...  
WO/2019/098475A1
The present invention provides a wavelength division multiplexing passive optical network, which is more simplified than that of a conventional method, and a method for tuning the wavelength of an optical signal in an optical communicati...  
WO/2019/095621A1
Disclosed in the embodiments of the present application are an upload and download filter and an optical add-drop multiplexer, capable of implementing closed-loop control of the upload and download filter. Provided in the embodiments of ...  
WO/2019/096371A1
Methods and apparatus are provided for receiving an optical signal. In one aspect, a method comprises receiving a first optical signal comprising time division multiplexed transmissions from a plurality of optical transmitters, and deter...  
WO/2019/095490A1
A radio-over-fiber communication beamforming device and method using an arrayed waveguide optical grating. A radio frequency signal is modulated onto multiple wavelength carriers and is processed in an optical domain by a programmable op...  
WO/2019/085960A1
Disclosed are a passive optical network system, and a data transmission method and apparatus. The data transmission method comprises: transmitting, on a first specified wavelength in a time division multiplexing (TDM) manner on a downlin...  
WO/2019/090220A1
An optical access network includes an optical hub having at least one processor, and a plurality of optical fiber strands. Each optical fiber strand has a first strand end connected to the optical hub. The network further includes a plur...  
WO/2019/090152A1
Described herein are systems and methods that determines a centroid of a waveform in a high noise environment. In one embodiment, the method may include determining a damping threshold and a noise-exclusion threshold for a waveform that ...  
WO/2019/082557A1
In order to efficiently allocate communication resources of an optical transmission system, this resource allocation device comprises: a resource calculation unit that derives communication resources demanded of a path on the basis of co...  
WO/2019/078122A1
Since it is difficult to easily grasp a wavelength fragmentation state in a wavelength division multiplexing optical communication network, this network management device comprises: a used wavelength information acceptance means that acc...  
WO/2019/079303A1
In one embodiment, a first group of splitters receives a group of signals from a group of transmitters. Each splitter in the first group of splitters splits a signal into a plurality of signals that are sent to a plurality of multiplexer...  
WO/2019/079225A1
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to rece...  
WO/2019/079138A1
A method for configuring hardware-configured optical links includes generating a first optical signal comprising a slow scan of wavelength channels where the slow scan has a dwell time on a particular wavelength channel. A second optical...  
WO/2019/075377A1
Near normal incidence MUX/DEMUX designs may include an optical demultiplexer coupled to a photonics die, where the optical demultiplexer comprises an input fiber, thin film filters at a first surface of a substrate, a first mirror at the...  
WO/2019/075322A1
Methods and systems for eliminating polarization dependence for 45 degree incidence MUX/DEMUX designs may include an optical transceiver, where the optical transceiver comprises an input optical fiber, a beam splitter, and a plurality of...  
WO/2019/065354A1
[Problem] To provide a light amplification device with which it is possible to minimize the level deviation between wavelengths in a broadband optical wavelength multiplexed signal. [Solution] The light amplification device 1 according t...  
WO/2019/068049A1
An example system for multi-wavelength optical signal splitting is disclosed. The example disclosed herein comprises a first splitter, a second splitter, and a modulator. The system receives a multi-wavelength optical signal and an elect...  
WO/2019/061406A1
Disclosed are a service data transmission method and apparatus, which relate to the field of communications, and solve the problem of supporting the large bandwidth, low time delay and low cost of a service in an OTN network. The specifi...  
WO/2019/065383A1
In order to provide a submarine optical transmission system that utilizes multiple wavelength bands, the submarine branching unit is provided with: a first demultiplexing part for demultiplexing a wavelength-multiplex optical signal inpu...  

Matches 1 - 50 out of 16,860