223924 ⎘
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication; Receivers Coherent receivers
Devices and methods for transmitting and receiving in an optical communications system
#302Optical transceiver, communication system, and adaptive frequency control method
#303Information beamforming for visible light communication
#304Noise margin monitor and control method
#305Measuring apparatus and method of frequency response characteristic imbalance of optical receiver
#306Method of measuring frequency response of optical coherent receiver
#307Systems and methods for demodulation of phase modulated optical signals
#308Digital-data mixing apparatus and digital-data processing system
#309Transmission method
#310Optical signal frequency calibration method and device
#311Software programmable flexible and dynamic optical transceivers
#312Transmission adjustment for space division multiplexing of optical signals
#313System and methods for coherent optical extension
#314Digital signal processor, digital optical receiver using the same, and digital signal processing method
#315Coherent transceiver architecture
#316Optical communication interface utilizing N-dimensional double square quadrature amplitude modulation
#317Light detection and ranging system with photonic integrated circuit
#318OXIDATION PROCESS
#319Optical measurement system using multicore optical fiber
#320Frequency domain equalizer for optical communications
#321Optical reception apparatus and monitor signal generating method
#322Free-space optical communication system and method in scattering environments
#323Coherent optical spectrum analyser for monitoring a spectrum of a fibre link
#324Apparatus and methods for reconfigurable optical receivers
#325Coherent receiver based virtual optical spectrum analyzer
#326Amplification circuit, optical module, and amplification method
#327Apparatus, method and computer program for a receiver of an optical signal
#328Optical communication device, optical communication system and optical transmission method
#329OPTICAL RECEIVER AND OPTICAL RECEIVING METHOD
#330Optical transmission system using optical frequency comb sources
#331Optical transmission/ reception device, optical communication system and optical transmission/ reception method
#332Hitless, multi-rate optical transmission and reception
#333Dual parallel Mach-Zehnder-modulator device with pre-distorted driving voltages
#334Optical receiver and signal processing method
#335Transceiving system, transmitter, receiver, and control method of transceiving system
#336OPTICAL RECEIVER AND METHOD FOR UPDATING TAP COEFFICIENT OF DIGITAL FILTER
#337Apparatus and method for monitoring optical performance parameter, and optical transmission system
#338Optical cryptography for high speed coherent systems
#339Clock recovery for optical transmission systems
#340Parity frame
#341Datacenter interconnection system
#342Chromatic dispersion measurement method and device and digital coherent receiver
#343High-speed, low-power optical communications
#344Equalization processing circuit, digital receiver, signal transmitting/receiving system, equalization processing method, and digital receiving method
#345Integrated coherent receiver having a geometric arrangement for improved device efficiency
#346Level spacing for M-PAM optical systems with coherent detection
#347Multi-carrier optical transmission system, optical transmitter, and optical receiver
#348Optical communication interface utilizing N-dimensional double square quadrature amplitude modulation
#349Optical transceiver using duplex media, self-homodyne detection (SHD), coherent detection, and uncooled laser
#350Apparatus and methods for enabling recovery in optical networks
#351Hardware efficient implementation of decision feedback phase estimation for an ultra high speed coherent receiver
#352Optical communication using super-nyquist signals
#353SYSTEM AND METHOD OF VISIBLE LIGHT COMMUNICATION BASED ON LED ILLUMINATION
#354Ground terminal design for high rate direct to earth optical communications
#355Link architecture and spacecraft terminal for high rate direct to earth optical communications
#356Network of extremely high burst rate optical downlinks
#357Frequency deviation compensation scheme, frequency deviation compensation method, and storage medium
#358Optical reception apparatus and monitor signal generating method
#359Signal processing method, apparatus and signal receiver
#360Optimization of optical transmission capacity
#361Light emitting diode (LED)-based multi-bitrate data links
#362Differential-coding and decoding for quadrature duobinary coherent optical communication systems
#363Ultra-wide range optical wavelength converter by direct signal translation from integrated coherent receiver to dual-polarization IQ modulator
#364Hitless, multi-rate optical transmission and reception
#365Optical channel sounder
#366Optical transmission/reception device, optical communication system and optical transmission/reception method
#367Calculating apparatus and method for nonlinear weighting coefficient
#368Method and system for optical impairment mitigation for high-speed optical communication systems
#369Method for estimating frequency offset, apparatus and system
#370Adaptive post digital filter and inter-symbol interference equalizer for optical communication
#371Multichannel coherent transceiver and related apparatus and methods
#372Optical transmission system, phase compensation method, and optical reception apparatus
#373OPTICAL RECEIVER HAVING AN EQUALIZATION FILTER WITH AN INTEGRATED SIGNAL RE-SAMPLER
#374Coherent communication system, communication method, and transmission method
#375Optical communication systems and methods
#376Coherent optical receiver device and coherent optical receiving method
#377Multi-Wavelength Laser Apparatus And Methods
#378System and method for 400G signal generation and coherent detection
#379Space division multiplexing apparatus including multi-core fiber and selfhomodyne detection method
#380Lasers Based On Optical Ring-Resonators
#381Optical modulation schemes having reduced nonlinear optical transmission impairments
#382Optical communication interface utilizing N-dimensional double square quadrature amplitude modulation
#383Power-efficient maximum likelihood decoding for 5 bits per dual-pol-symbol modulation
#384Receiver for coherent optical transport systems based on analog signal processing and method thereof
#385Optical communication systems and methods
#386Frequency-diversity MIMO processing for optical transmission
#387Planar lightwave circuit and optical receiver
#388Method and system for optical impairments mitigation for high-speed optical communication systems
#389Method for compensating chromatic dispersion and associated equipment
#390Coherent transponder with enhanced frequency locking
#391Optical communication interface utilizing n-dimensional double square quadrature amplitude modulation
#392High-speed low-jitter communication system
#393Data processing of an optical network element
#394Optical receiver and method for controlling optical receiver, optical receiver, method for controlling optical receiver, and method for receiving light
#395Symbol timing estimation for coherent polarization multiplex optical receivers
#396Optical receiver
#397Signal processing method, optical receiver and optical network system
#398Optical transmitting apparatus and optical detecting apparatus
#399Integrated production of self injection locked self phase loop locked optoelectronic oscillator
#400Ultra-high-speed optical transport based on adaptive LDPC-coded multidimensional spatial-spectral scheme and orthogonal prolate spheroidal wave functions
#401Polar multi-symbol delay detector for carrier phase and frequency recovery for coherent transmission
#402Optical communication based on polarization dependent coherent optical Nyquist frequency division multiplexing
#403Method of demodulating a phase modulated optical signal
#404Multi-channel photoreceiver module
#405Optical communication reception system
#406Optical phase conjugation aided long-haul transmission system with enhanced signal-to-noise ratio and nonlinear tolerance
#407COHERENT OPTICAL RECEIVER AND LOCAL LIGHT SWITCHING METHOD
#408Next generation optical access network with centralized digital OLT
#409Surface acoustic wave tag-based coherence multiplexing
#410Spectral analysis for coherent optical receivers
#411Tunable coherent optical receiver and method
#412Photonic Integrated Circuit Based Phase Conjugation Devices and Methods
#413Optical Receiver with a Wide Power Sensitivity Dynamic Range
#414Optical receiver and optical reception method
#415Optical module
#416Optical communication reception system
#417PHASE SKEW COMPENSATION AT A COHERENT OPTICAL RECEIVER
#418Multi-channel optical transceiver with offset quadrature amplitude modulation
#419Signal framing in a coherent optical receiver
#420Coherent optical receiver device and coherent optical receiving method
#421Signal detection method and optical signal receiving system
#422High-speed low-jitter communication system
#423PARITY FRAME
#424Optical coherent receiver with local oscillator laser having hybrid cavity
#425Signal transmission and reception device and method
#426Modulation device and modulation method, and demodulation device and demodulation method
#427Optical receiver
#428Communication Through Phase-Conjugated Optical Variants
#429Performance enhancement through optical variants
#430METHOD AND ARRANGEMENT FOR SIGNAL PROCESSING IN A COMMUNICATION SYSTEM
#431Optical transmitting/receiving system and timing extracting method in optical transmitting/receiving system
#432Parallel conversion between optical and digital
#433Optical Superchannel Method and System
#434Method for improving the performance of digital coherent optical receiver using single ended photo-detection
#4351 Tb/s converged optical metro-access transmission based on wavelength division multiplexed orthogonal frequency division multiple access passive optical network (WDM-OFDMA-PON)
#436Adaptively Balanced Detector
#437Optical receiving apparatus
#438Optical detector for detecting optical signal beams, method to detect optical signals, and use of an optical detector to detect optical signals
#439Data transmission system and method
#440Dual-polarization QPSK demodulator
#441Measuring phase noise in radio frequency, microwave or millimeter signals based on photonic delay
#442Optical receiver and optical transmission system
#443Coherent optical receiver for pilot-assisted data transmission
#444Distribution of optical power in an optical transport system
#445Clock recovery for optical transmission systems
#446Coherent optical receiver with adaptive equalizer initialization system
#447Transmission device, control device, and method of detecting erroneous connection of signal line
#448Optical network system, optical multiplexing apparatus, and receiving apparatus
#449Method and apparatus for carrier phase estimation and correction in a coherent optical system
#450Pilot symbol aided carrier phase estimation
#451Polarization diversity optical system device, demodulator and transceiver
#452Polarization fluctuation compensation device and optical communication system
#453Tunable receiver
#454Optical waveguide device and manufacturing method of optical waveguide device
#455Optical receiver
#456Multi-channel optical transceiver with offset quadrature amplitude modulation
#457Optical hybrid circuit, optical receiver, and optical receiving method
#458Introduction-side dispersion shifting of channels
#459Distinct dispersion compensation for coherent channels
#460Measuring phase noise in radio frequency, microwave or millimeter signals based on photonic delay
#461Digital coherent detection of multi-carrier optical signal
#462Filter coefficient control apparatus and method
#463Synchronous circuit for use in optical homodyne receiver for generating local oscillation light with accurate demodulation
#464Method and apparatus for reception of optical signals
#465PARALLEL OPTICAL RECEIVER FOR OPTICAL SYSTEMS
#466Digital coherent optical receiver
#467Coherent optical receiver
#468Electrically controlled optical oscillator for a single-side subcarrier optical phase-locked loop
#469System and method for coherent detection of optical signals
#470Phase synchronization apparatus and digital coherent light receiver
#471Local oscillator frequency offset compensation in a coherent optical signal receiver
#472Dual stage carrier phase estimation in a coherent optical signal receiver
#473Adaptive polarization tracking and equalization in coherent optical receivers
#474Optical sampling with coherent detection
#475Optical receiver and optical reception method compatible with differential quadrature phase shift keying
#476Delay processing apparatus, signal amplification apparatus, opto-electric conversion apparatus, analog-digital conversion apparatus, receiving apparatus, and receiving method
#477Multi-wavelength coherent receiver with a shared optical hybrid and a multi-wavelength local oscillator
#478OPTICAL MIXER FOR COHERENT DETECTION OF POLARIZATION-MULTIPLEXED SIGNALS
#479APPARATUS FOR SYNCHRONIZING DIGITAL SIGNALS OF COHERENT OPTICAL RECEIVER
#480OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH NONLINEARITY COMPENSATION
#481Homodyne receiver for optical communications with post processing
#482Polarization-diverse, heterodyne optical receiving system
#483Method for improving the performance of digital coherent optical receiver using single ended photo-detection
#484Secure optical communications system and method with coherent detection
#485Digital clock and data recovery scheme
#486Optical field receiver and optical transmission system
#487METHOD AND SYSTEM FOR POLARIZATION SUPPORTED OPTICAL TRANSMISSION
#488Filter coefficient adjustment apparatus
#489System, method and apparatus to suppress inter-channel nonlinearities in WDM systems with coherent detection
#490Optical receiving apparatus and digital receiving circuit
#491Optical code communication system
#492Apparatus and method for frequency offset monitoring used in digital coherent optical receiver
#493LDPC-coded multilevel modulation scheme
#494Coherent optical receiver and adjustment method thereof
#495Optical receiver and a free-space optical communications using the same
#496METHOD AND APPARATUS FOR COHERENT ANALOG RF PHOTONIC TRANSMISSION
#497Photonic-based cross-correlation homodyne detection with low phase noise
#498Direct detection for receiving polarization multiplexing signals
#499Optical orthogonal frequency division multiplexed communications with nonlinearity compensation
#500Combined phase and polarization modulation for optical communication
#501Space diversity optical receiver and system and method using the same
#502Single chip two-polarization quadrature synthesizer, analyser and optical communications system using the same
#503Optical receiver using beam combining and system using the same
#504Coherent optical detection and signal processing method and system
#505Frequency offset compensating apparatus and method, and optical coherent receiver
#506Coherent optical detection and signal processing method and system
#507Coherent optical detector and coherent communication system and method
#508Optical coherent receiver, frequency offset estimating apparatus and method for optical coherent receiver
#509Frequency offset monitoring device and optical coherent receiver
#510Coherent optical receiver
#511Coherent light receiving system
#512OPTICAL MEASURING APPARATUS AND OPTICAL MEASURING METHOD
#513Digital phase estimator, digital phase locked loop and optical coherent receiver
#514Optical orthogonal frequency division multiplexed communications with coherent detection
#515Adaptive polarization tracking and equalization in coherent optical receivers
#516Frequency estimation in an intradyne optical receiver
#517Coherent optical receiver
#518Optical receiver and an optical transmission system incorporating the same
#519Coherent optical transceiver and coherent communication system and method for satellite communications
#520System and method for receiving coherent, polarization-multiplexed optical signals
#521Coherent gated receiver
#522Coherent optical detector and coherent communication system and method
#523Optical quadrature-amplitude modulation receiver
#524Monolithic optically preamplified coherent photoreceiver arrays
#525Digital Compensation for Optical Transmission System
#526Optical communications using multiplexed single sideband transmission and heterodyne detection
#527Coherent optical detector and coherent communication system and method
#528Optical heterodyne receiver and method of extracting data from a phase-modulated input optical signal
#529All optical clock recovery
#530Optical communications using multiplexed single sideband transmission and heterodyne detection
#531Optical receiver and optical reception method compatible with differential quadrature phase shift keying
#532Optical communications apparatus
#533Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery
#534Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery
#535Optical communication using duobinary modulation
#536Method for the transmission of optical polarization multiplex signals
#537Polarization diverse optical receiver using a polarization-dependent beam splitter
#538Optical image transmitting system, optical image transmitting apparatus, optical image receiving apparatus, and optical image transmitting method
#539Synchronizing the filter wavelength of an optical filter with the wavelength of a swept local oscillator signal
#540Apparatus and method for monitoring signal-to-noise ratio in optical transmission systems
#541Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery
#542Optical transceiver with dispersion management
#543Optical frequency comb based coherent phase recovery simplification
#544System and methods for coherent optical extension
#545Differential differencing transimpedance amplifier for coherent applications
#546Generating radio frequency electromagnetic radiation
#547Systems and methods for coherent optical backhauling
#548Intra data center optical communication
#549Systems and methods for coherent optics ranging and sensing
#550Optical frequency comb based coherent phase recovery simplification
#551Optical system and method
#552System, method and apparatus for monitoring optical performance
#553Systems and methods for full duplex coherent optics
#554Method and apparatus for automatically retransmitting corrupted data
#555Fast estimation of chromatic dispersion
#556Systems and methods for quantum optical device authentication
#557Coherent optical receiver using single-ended photodiodes
#558Management and control plane redundancy in a disaggregated network element
#559Low power optical link
#560Efficient multi-channel coherent optical system
#561Optical coherent receiver
#562Optical domain equalization for coherent optical receivers
#563Continuous carrier optical phase optometric measurement over coherent optical communication link
#564Apparatus and methods for transmitter skew and bias error compensation in an optical communication system
#565Apparatus and methods for timing tone based transmitter skew alignment in an optical communication system
#566Reconfigurable photonic integrated circuit focal plane array
#567Systems approach to interference cancellation
#568Optical conversion system and method with multiple phase processing