223948 ⎘
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; Non-coherent receivers, e.g. using direct detection; Optical arrangements in the receiver for all-optical demodulation of the input optical signal for differentially modulated signal, e.g. DPSK signals
WAVELENGTH REFERENCE HAVING REPEATING SPECTRAL FEATURES AND UNIQUE SPECTRAL FEATURES
#2OPTICAL HALF-ADDER AND AVERAGING DATA CHANNELS USING NONLINEAR WAVE MIXING
#3Wavelength Reference Having Repeating Spectral Features and Unique Spectral Features
#4High-speed optical analog-to-digital converter based on compressive sensing
#5Apparatus and method for shifting a frequency of an optical signal
#6Method for transmitting or receiving signal in low-bit quantization system and device therefor
#7Methods and apparatus for cavity length tuning for operating point optimization
#8Demodulator with optical resonator
#9OPTICAL COMMUNICATION METHOD
#10Systems and methods for carrier phase recovery
#11Communication method and apparatus using hybrid modulation scheme in communication system
#12Receiver Assembly, Data Communications System, and Data Communications Method
#13Optical communication method
#14Transmitter for an Optical Free-Beam Communication System and Optical Free-Beam Communication System
#15Rx delay line inteferometer tracking in closed-loop module control for communication
#16Balanced optical receivers and methods for detecting free-space optical communication signals
#17RX delay line inteferometer tracking in closed-loop module control for communication
#18Systems and methods for demodulation of wave division multiplexed optical signals
#19Signal Generation Method and Device
#20Distributed optoelectronic receiver
#21Rx delay line inteferometer tracking in closed-loop module control for communication
#22Systems and methods for concealing waveform properties
#23Apparatus and methods for power efficient multi-format optical transmission
#24Imbalance compensation device, transmission device, and imbalance compensation method
#25Temperature insensitive delay line interferometer
#26Temperature insensitive delay line interferometer
#27SIGNAL EQUALIZER IN A COHERENT OPTICAL RECEIVER
#28Apparatus and methods for reconfigurable optical receivers
#29Optical differential signal sending method, apparatus and system
#30Method and apparatus for transmitting phase shift keyed optical signals
#31Memory controller, memory system including the same, and electronic device including the memory system
#32Signal equalizer in a coherent optical receiver
#33OPTICAL TRANSMITTING AND RECEIVING APPARATUS AND METHOD THEREOF BASED ON MULTICARRIER DIFFERENTIAL PHASE SHIFT KEYING
#34Polarization beam combiner/splitter, polarization beam combining/splitting structure, light mixer, optical modulator module, and method for manufacturing polarization beam combiner/splitter
#35Method of converting an optical communications signal and an optical receiver
#36Polar multi-symbol delay detector for carrier phase and frequency recovery for coherent transmission
#37Optical receiver
#38Filter-based DPSK communications system
#39Athermal DQPSK and/or DPSK demodulator
#40Compact polarization-insensitive optical receiver
#41Signal equalizer in a coherent optical receiver
#42DPSK OPTICAL RECEIVER
#43Optical receiver and optical transmission system
#44Method and apparatus for controlling bias point of differential quadrature phase shift keying demodulator
#45PLC-type delay demodulation circuit and PLC-type optical interferometer
#46Method and apparatus for controlling an optical receiver having delay paths
#47Optical Receiver
#48Optical transmission system
#49Optical differential phase-shift keyed signal demodulator
#50OPTICAL DELAY-LINE INTERFEROMETER FOR DPSK AND DQPSK RECEIVERS FOR FIBER-OPTIC COMMUNICATION SYSTEMS
#51Method and device for monitoring and controlling phase difference based on DQPSK modulation
#52Optical detector for detecting optical signal beams, method to detect optical signals, and use of an optical detector to detect optical signals
#53Dual-polarization QPSK demodulator
#54Optical interferometer
#55Demodulator Using MEMS Chip for Adjusting The Phase
#56PLC-type delay demodulation circuit
#57OPTICAL RECEIVER
#58PLC-type delay demodulation circuit
#59DQPSK optical receiver
#60OPTICAL RECEIVING APPARATUS AND METHOD
#61Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them
#62Optical 90-degree hybrid circuit
#63Self-adaptive receivers not requiring FEC feedback
#64METHOD AND APPARATUS FOR CONTROL OF DPSK AND DQPSK RECEIVERS AND TRANSMITTERS
#65Apparatus for receiving optical signal and method of controlling phase offset for differential quadrature phase shift keying
#66NOISE SUPPRESSION IN AN OPTICAL APPARATUS
#67WEDGE PAIR FOR PHASE SHIFTING
#68Optical transmission and reception system, optical transmitting and receiving apparatus, and optical transmission and reception method
#69DQPSK/DPSK optical receiver with tunable optical filters
#70Method and apparatus for phase shift keyed optical communications
#71Delay-Line-Interferometer for Integration with Balanced Receivers
#72Signal equalizer in a coherent receiver
#73Interferometer, demodulator, and optical communication module
#74Sampling-based balanced detection system
#75Delay-Line-Interferometer for Integration with Balanced Receivers
#76Polarization Based Delay Line Interferometer
#77PHASE MODULATED SIGNAL RECEIVER
#78Optical differential phase-shift keyed signal demodulator
#79DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING SYSTEM, METHOD, AND DEVICE
#80Modified Michelson delay-line interferometer
#81Optical device, optical hybrid circuit, and optical receiver
#82OPTICAL TRANSMISSION APPARATUSES, METHODS, AND SYSTEMS
#83Method and system for deploying an optical demodulator arrangement in a communications network
#84Optical receiver systems and methods for polarization demultiplexing, PMD compensation, and DXPSK demodulation
#85Optical receiver
#86Optical receiver
#87Narrow-band DPSK apparatus, system, method
#88Free-space DQPSK demodulator
#89Coherent receiver having an interleave-chirped arrayed waveguide grating
#90Optical signal receiving apparatus
#91Optical mixer
#92Rate adjustable differential phase shift key (DPSK) modulation
#93Modulator and demodulator for a differential optical modulation format with eight phase changes
#94Phase control circuit and method for optical receivers
#95Optical communication system, optical communication method and optical communication apparatus
#96Transverse-mode multiplexing for optical communication systems
#97Optical Receiver
#98Receiving apparatus and method for electronic noise compensation in phase modulated optical transmission
#99Light receiving circuit and signal processing method
#100Demodulator
#101Device and method for receiving DQPSK signal and method for obtaining DQPSK signal
#102PMDC feedback arrangement for APol-DPSK
#103POLARIZATION INTERFEROMETER, OPTICAL MODULE, AND OPTICAL RECEIVER
#104OPTICAL TRANSMISSION SYSTEM, APPARATUS AND METHOD
#105Optical PON network using passive DPSK demodulation
#106Integrated equalizer and Michelson interferometer structure for inter-symbol interference-suppressed colorless DPSK demodulation
#107Data pattern dependent distortion compensation in a coherent optical signal receiver
#108Modified Michelson Interferometer Structure for Inter-Symbol Interference-Suppressed Colorless DPSK Demodulation
#109OPTICAL RECEIVING APPARATUS, METHOD FOR OPTICAL RECEPTION, AND OPTICAL TRANSMISSION SYSTEM
#110PHASE NOISE SUPPRESSION IN AN OPTICAL SYSTEM
#111Polarization multiplexing with different DPSK modulation schemes and system incorporating the same
#112Method and device for receiving OPFDM-DQPSK signal
#113OPTICAL TRANSCEIVER OPTIMIZING TRANSFER CHARACTERISTIC OF OPTICAL INTERFEROMETER AND METHOD OF OPTIMIZING TRANSFER CHARACTERISTIC OF OPTICAL INTERFEROMETER OF OPTICAL TRANSCEIVER
#114Direct detection differential polarization-phase-shift keying for high spectral efficiency optical communication
#115Optical receiving device, optical receiving circuit, and method for receiving optical signals
#116Demodulator and receiving device
#117Filter-based DPSK receiver
#118OPTICAL RECEIVER
#119OPTICAL CIRCUIT
#120Delay-line demodulator
#121All-optical balanced detection system
#122Methods to control phase shifts of delay demodulation devices
#123Optical reception device and optical reception method
#124System and method for receiving high spectral efficiency optical DPSK signals
#125Delay demodulation devices
#126Differential multilevel modulated optical signal receiver apparatus
#127Communication apparatus and signal reception method
#128DPSK optical receiver
#129Optical balanced receiver and IQ receiver with balanced compensation
#130DELAY INTERFEROMETER
#131DELAY INTERFEROMETER
#132DELAY INTERFEROMETER
#133Method and apparatus for demodulating and regenerating phase modulated optical signals
#134Optical receiving apparatus
#135Optical receiver and optical phase control method thereof
#136PHASE-MODULATED SIGNAL RECEIVING DEVICE
#137Receiver on a photonic IC
#138OPTICAL CIRCUIT AND RECEIVER CIRCUIT
#139Optical receiver including a filter on a planar lightwave circuit
#140OPTICAL RECEIVER
#141Polarization demultiplexing optical receiver using polarization oversampling and electronic polarization tracking
#142Optical receiving apparatus and method
#143OPTICAL PHASE-SHIFT-KEYING DEMODULATOR BIAS CONTROL METHOD
#144OPTICAL DQPSK RECEIVER AND OPTICAL PHASE MONITOR APPARATUS FOR USE IN OPTICAL DQPSK RECEIVER
#145Method and system for automatic feedback control for fine tuning a delay interferometer
#146Tunable optical discriminator
#147Michelson-interferometer-based delay-line interferometers
#148Method for improving the performance of phase-modulated communication systems in an optical network
#149Optical reception apparatus compatible with DQPSK polarization multiplexing format
#150Method and system for automatic feedback control for fine tuning a delay interferometer
#151DQPSK/DPSK optical receiver with tunable optical fibers
#152Signal equalizer in a coherent optical receiver
#153DQPSK optical receiver
#154Balanced phase-shaped binary transmission in optical communications
#155Modified Michelson delay line interferometer
#156Optical receiver having bandwidth control for intersymbol interference compensation
#157Electrical-dispersion compensating apparatus, optical receiving apparatus, and optical receiving method
#158Optical receiver systems and methods for polarization demultiplexing, PMD compensation, and DXPSK demodulation
#159Optical receiver using Mach-Zehnder interferometer
#160Delay-line demodulator
#161Reconstruction and restoration of two polarization components of an optical signal field
#162Reconstruction and restoration of two polarization components of an optical signal field
#163MONOLITHIC DQPSK RECEIVER
#164DEMODULATOR SYSTEM AND METHOD USING MULTILEVEL DIFFERENTIAL PHASE SHIFT KEYING
#165Optical transmitting and receiving system
#166Phase monitor apparatus, phase control apparatus and methods thereof for optical DQPSK receiver
#167Optical signal monitoring apparatus and method
#168Optical reception apparatus and controlling method thereof
#169OPTICAL TRANSMISSION SYSTEM
#170Detecting abnormality in an optical receiver
#171Optical receiver, optical communication device, and optical signal receiving method
#172Inter-Symbol Interference-Suppressed Colorless DPSK Demodulation
#173Data transmission system and transmission code generating method for the same
#174OPTICAL RECEIVER, RECEPTION CONTROL METHOD AND RECEPTION CONTROL PROGRAM
#175Delay-line demodulator and method of adjusting a phase shift in the demodulator
#176GT decoder having bandwidth control for ISI compensation
#177Optical differential-phase-shift-keyed demodulator apparatus and method
#178Delay line interferometer having a stepped delay element
#179Delay line interferometer having a movable mirror
#180OPTICAL RECEIVING APPARATUS AND BALANCE ADJUSTMENT METHOD
#181Delayed interferometer enabling a reduction of polarization-dependent frequency shift and demodulator
#182COLORLESS OPTICAL DEMODULATOR FOR DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DWDM SYSTEMS
#183Device and method for decoding an optical multi-level DPSK signal
#184Light receiving apparatus using DQPSK demodulation method, and DQPSK demodulation method
#185Evaluation and adjustment method of optical receiver and optical communication system
#186METHOD AND RECEIVER TO INCREASE THE SPECTRAL EFFICIENCY OF DPSK MODULATION FORMAT
#187Reconstruction and restoration of an optical signal field
#188Optical receiving apparatus
#189Phase monitor used in optical receiver
#190Multi-level modulation receiving device
#191OPTICAL DIFFERENTIAL PHASE SHIFT KEYING RECEIVERS WITH MULTI-SYMBOL DECISION FEEDBACK-BASED ELECTRO-OPTIC FRONT-END PROCESSING
#192Control method and apparatus for receiving optical signal
#193Demodulating a signal using a 1 x m coupler
#194Free space demodulator for demodulating a signal
#195Demodulating a signal by performing consecutive beam splitting
#196Method and arrangement for the optical transmission of data signals via differential phase modulation in a polarization multiplex method
#197Rate adjustable differential phase shift key (DPSK) modulation
#198Multi-channel differentially encoded phase shift keyed receivers
#199Optical signal demodulator
#200Phase controllable optical delay interferometer, optical differential phase shift keying demodulator using the same, and demodulating method therefor
#201Michelson interferometer based delay line interferometers
#202RZ-DPSK optical receiver circuit
#203Differential multilevel modulated optical signal receiver apparatus
#204Method and apparatus for control of DPSK and DQPSK receivers and transmitters
#205Method and apparatus for receiving data
#206Data transmission method and a system thereof
#207Reconfigurable polarization independent interferometers and methods of stabilization
#208Michelson interferometer based delay line interferometers
#209Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them
#210All-fiber phase controlled delay interferometer and method of making the same
#211Optical receiver apparatus and method
#212Receiver for a differential phase modulated signal
#213Multi-channel DPSK receiver
#214DPSK demodulator and demodulating method
#215Apparatus for and method of controlling optical interferometer
#216Optical receiver for receiving differential phase and frequency shift-keyed optical signals
#217Pulse train optical transmission system and transmitter and receiver apparatuses used therein
#218Apparatus and method for receiving a quadrature differential phase shift key modulated optical pulsetrain
#219Optical transmission method and system
#220Method and system for automatic feedback control for fine tuning a delay interferometer
#221Systems and methods for carrier phase recovery
#222Systems and methods for carrier phase recovery
#223Feedback equalization with delay compensation
#224Systems and methods for carrier phase recovery
#225Wide range optical wavelength fast detection for narrowband signal