IQ DENSE CODING METHOD AND DEVICE FOR SDM COMMUNICATION SYSTEM ON OPTICAL FIBER

POLARIZATION FLUCTUATION DETECTION METHOD, POLARIZATION FLUCTUATION DETECTION APPARATUS, AND POLARIZATION FLUCTUATION DETECTION SYSTEM

INTEGRATED POLARIZATION CONTROLLER WITH OPTICAL ATTENUATOR FOR CROSSTALK AND POWER FLUCTUATION REDUCTION

CONTROL DEVICE, COMPENSATION DEVICE, PROGRAM, AND CONTROL METHOD

Laserless optical transceiver

SYSTEMS AND METHODS FOR REAL-TIME POLARIZATION DRIFT COMPENSATION IN OPTICAL FIBER CHANNELS USED FOR QUANTUM COMMUNICATIONS

Echo cancellation system and method

Optical network device and method for monitoring transmission line

Polarization dependent loss (PDL) compensation systems

Apparatus and method for monitoring polarization change

State of polarization tracking recovery method and apparatus

Polarization independent optical receiver

Equalizing device for compensating rapid state of polarization changes of an optical signal

OPTICAL TRANSCEIVER AND METHOD FOR MONITORING VARIATION IN POLARIZATION

OPTICAL COMMUNICATION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL COMMUNICATION METHOD

Method and system for eliminating polarization dependence for 45 degree incidence MUX/DEMUX designs

Integrated optical device

Quantum communication systems having dispersion compensating optical fiber links

Systems and methods for multipath and reflection compensation in full duplex coherent optical transmissions

Method and apparatus for monitoring polarization dependent loss, receiver and communication system

Optical network span sensing

Communication apparatus and method of controlling transmission signal

MODE DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORK

RECEIVING APPARATUS AND SETTING METHOD

Method and apparatus for estimating polarization dependent loss and receiving device

Method and system for nonlinear interference mitigation

Receiving apparatus and setting method

External cavity FP laser

Optical network span sensing

Fiber-based communication

Optical source, communications network optical apparatus and communications network base station

Radio-over-fibre transmission in communications networks

Optical module and optical transmitter using the same

Optical transceiving apparatus, optical transmitting method, and optical transmitting device

Method and system for nonlinear interference mitigation

Polarization state aligner (PSA)

Optical transmission apparatus, optical transmission system, and transmission wavelength control method

Polarization tracking using signal tone information while keeping least mean squares frequency domain equalization

System for continuously active stabilization of interferometers in quantum time-bin entanglement distribution

Signal equalizer in a coherent optical receiver

Signal processing device and signal processing method

Polarization state detector, optical transmitter, and optical receiver

Systems and methods for the compensation of nonlinear cross polarization and cross phase modulation in dual polarization coherent channels

Method and apparatus for digital polarization scrambling in coherent optical communication systems employing both transmit and receive digital signal processing

Asymmetric compensation of polarization dependent loss in dual-polarization optical systems

Dual-polarization interferometric optical signal-to-noise ratio monitor

Mitigation of polarization dependent loss in optical multi-carrier/super-channel transmission

Optical transmission system and optical transmission method

Soft decoding of data in a coherent optical receiver

Passive optical networks

Systems and methods for the compensation of nonlinear cross polarization and cross phase modulation in dual polarization coherent channels

Method and System for Reducing Noise Associated with Optical Signals

Polarization dependent loss compensation

Optical transceiving apparatus, optical transmitting method, and optical transmitting device

PDL compensator optical device, and PDL compensation method

Signal equalizer in a coherent optical receiver

DPSK OPTICAL RECEIVER

Method and apparatus for adaptive nonlinear equalization in a polarization multiplexing optical communication system

Method and apparatus for processing optical signals

Method and arrangement for transmitting an optical transmission signal with reduced polarisation-dependent loss

Optical transmission system, optical transmitting apparatus, and optical receiving apparatus

System and method for reducing interference of a polarization multiplexed signal

Electronic phase conjugation for impairment compensation in a fiber communication system

TRANSPONDER FOR AN OPTICAL COMMUNICATIONS SYSTEM AND OPTICAL COMMUNICATIONS SYSTEM

Communication system, measuring apparatus, transmitting apparatus, and measurement method

Controlled depolarization using chirp for mitigation of nonlinear polarization scattering

Method and equipment for operating a coherent optical packet receiver

System and method for reducing polarization dependent loss

System and method for reducing polarization dependent loss cross-talk effects

Optical transmission system

Transmission apparatus and transmission system

Polarization control in a photonic integrated circuit

Optical transmission system

Optical transmission system, transmitter, receiver and method

Electronic nonlinearity compensation for optical transmission systems

Polarization fluctuation compensation device and optical communication system

Signal equalizer in a coherent receiver

System and method for managing the selection of ghost channels for mitigating polarization hole burning

System and method for optimizing the selection of ghost channels in mitigating polarization hole burning

System and method for mitigating polarization hole burning

System and method for selection of ghost channels for mitigating polarization hole burning

Optical transmission and reception system, and optical receiver

Optical communications with polarization dependent loss compensation

High speed in-service optical network testing

Method and apparatus for broadband mitigation of polarization mode dispersion

Tunable dispersion compensator with minimum differential group delay

Soft decoding of data in a coherent optical receiver

Depolarised WDM source

PMDC feedback arrangement for APol-DPSK

Polarization mode dispersion (PMD) compensation in polarization multiplexed coded orthogonal frequency division multiplexing (OFDM) systems

Polarization mode dispersion compensation and polarization demultiplexing systems and methods for optical transmission systems

Monitoring apparatus and method for polarization scrambler and optical transmission apparatus

Tunable dispersion compensator with minimum differential group delay

Signal equalizer in a coherent optical receiver

Optical transmission system and optical transmission method

Optical Transmission System

Polarization mode dispersion compensator, polarization mode dispersion compensating method, and its application to optical communication system

MONITORING AND IN-LINE COMPENSATION OF POLARIZATION DEPENDENT LOSS FOR LIGHTWAVE SYSTEMS

Polarization mitigation technique

Adaptive equalization of a polarization scrambled optical signal

Polarization compensation in a coherent optical receiver

Adaptive polarization adjustment apparatus for controlling polarization of light inputted to polarization-maintaining waveguide components

Method and Apparatus for Detecting Localized Polarization Dependent Anomalies on Optical Transmission Lines

Deliberate signal degradation for optimizing receiver control loops

Method and apparatus for improving dual-polarization optical communication performance

Optical communication system, method, and optical transmitting station

Compensation of polarization mode dispersion in single mode fiber for maximum-likelihood sequence estimation

Receiver for PMD mitigation by polarization scrambling

Polarization mode dispersion compensator, polarization mode dispersion compensating method, and its application to optical communication system

Method and apparatus for optical signal transmission

Multi-wavelength CD and PMD compensator

Method and apparatus for PMD/PDL/PDG mitigation

Signal transmission apparatus and a method of signal transmission

Polarization scrambler and optical network using the same

Polarization scrambler and optical network using the same

Method and polarization-multiplex system for reducing the signal degradation of an optical polarization-multiplex signal

Equalization strategy for dual-polarization optical transport system

Dynamic broadband optical equalizer

Optical communication system and method thereof

Polarization scrambler unit and multi-repeater transmission system incorporating the same

Polarization mitigation technique

Polarization dependent loss loop

Method to reduce optical signal fading in signal receive aperture

Feedback equalization with delay compensation

Hybrid coarse wavelength division multiplexing (CWDM) transceiver

Method of suppressing polarization-dependent loss in polarization-modulated photonic links