MARKERS FOR DUAL-POLARIZATION OPTICAL SYSTEMS

Method And Apparatus For Ultra-Short Pulsed Laser Communication Through A Lossy Medium

Base-Calling Method and Device, Electronic Equipment and Storage Medium

DELAY CONTROL CIRCUIT, OPTICAL TRANSMITTER, AND DELAY CONTROL METHOD

COMMUNICATION DEVICE INCLUDING NESTED MODULATOR AND BIAS CONTROL METHOD FOR NESTED MODULATOR

Method And Apparatus For Ultra-Short Pulsed Laser Communication Through A Lossy Medium

Method and system for optical timing transfer

Systems, methods, and devices for spur and noise suppressed photonic links

Method and apparatus for ultra-short pulsed laser communication through a lossy medium

Interference suppression with mitigation of intermodulation distortion

Interference suppression with mitigation of intermodulation distortion

Optical transmitter and method of controlling optical transmitter

Bias control of optical modulators

Apparatus and methods for power efficient multi-format optical transmission

Bias control apparatus and method of modulator of optical transmitter and optical transmitter

Bias control of optical modulators

Optical communication apparatus and optical communication system

Device and method for free space coherent optical communication by means of automatic compensation for phase noise in atmosphere using femtosecond laser optical comb

Opto-electronic oscillator with stimulated Brillouin scattering feedback

Downhole telemetry using adaptive feedback

Outphasing power management circuit for radio frequency (RF) beamforming

Optical transmitter

Method and system for controlling phase of a signal

Optical IQ modulator control

Automatic bias stabilization of dual-polarization in-phase and quadrature optical modulator

Optical transmitter, optical transmission system and optical communication control method

Optical transmit system

INTEGRATED OPTICAL PHASED ARRAY

Apparatus and method for single-channel digital optical phase conjugation

Optimum modulator bias systems and methods in coherent optical transmitters

Amplification-free electro-optical oscillator

Optimum modulator bias systems and methods in coherent optical transmitters

Phase modulation apparatus

Integrated optical phased array

Optical modulation device and optical modulation method

Optical frequency comb generating device and optical pulse generating device using same, and optical frequency comb generating method and optical pulse generating method using same

Method and apparatus for controlling bias point of differential quadrature phase shift keying demodulator

Gain control for an optical modulator

Optical output module, optical transceiver, and optical transmission system

Alignment of a data signal to an alignment signal

Alignment of in-phase and quadrature data in quadrature phase shift keying optical transmitters

OPTICAL TRANSMITTER

Optical modulator and optical modulating method

Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them

METHOD AND APPARATUS FOR CONTROL OF DPSK AND DQPSK RECEIVERS AND TRANSMITTERS

QUADRATURE MODULATOR WITH FEEDBACK CONTROL AND OPTICAL COMMUNICATIONS SYSTEM USING THE SAME

Optical transmitter apparatus

Polarization multiplexed optical transmitter and method for controlling polarization multiplexed optical signal

Control apparatus and control method for optical modulator

Polarization multiplexing with different DPSK modulation schemes and system incorporating the same

OPTICAL TRANSMISSION APPARATUS

Optical transmitter apparatus

Ditherless optical modulator control

Optical modulation device and optical modulation method

Quaternary phase modulator

Quadrature phase-shift keying modulator and phase shift amount controlling method for the same

Control apparatus and control method for optical modulator

Frequency shift keying demodulator

LIGHT MODULATING APPARATUS

Method and apparatus for pulse generation and adaptive pulse generation for optical communications

Optical transmission device

Method for generating carrier residual signal and its device

Optical communication apparatus

Optical transmitter

Optical transmitter apparatus

Method and apparatus for pulse generation and adaptive pulse generation for optical communications

Quadrature modulator with feedback control and optical communications system using the same

Fiber optical transmission system, transmitter and receiver for DQPSK modulated signals and method for stabilizing the same

Optical transmitting apparatus and optical communication system

Method and apparatus for control of DPSK and DQPSK receivers and transmitters

Optical signal generating circuit and optical transmission line

Method and system for keeping time alignment between optical data modulation and a periodically modulated light source

Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them

Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them

Method and system for keeping timing alignment between driving signals in optical double modulation

Method and apparatus for bias and alignment control in an optical signal transmitter

Optical phase modulation

Closed loop RZ-DPSK alignment for optical communications

Adiabatically frequency modulated source

Optical signal generating circuit and optical transmission line

System and method for automatic chromatic dispersion compensation

Driving circuit for optical modulator and method for driving optical modulator

Bias adjustment method for optical SSB modulator or optical FSK modulator

Apparatus and method for phase synchronization control in RZ optical transmitter

Modulation control

Multiple wavelength photonic oscillator

Apparatus and method for optical modulation

Multi-wavelength generating method and apparatus based on flattening of optical spectrum

Method and apparatus for controlling modulator phase alignment in a transmitter of an optical communications system

High bandwidth individual channel control via optical reference interferometry control system architecture

RF processing system and method

RF processing system and method

Method and apparatus for detection and correction of time skew in an optical transmitter

Apparatus for dual-polarization QAM and optical communications system using the same cross-reference to related application

Quadrature power balance control in optical transmitters