Optical Communication System with a Simplified Remote Optical Power Supply

Unpolarized optical signal amplification using polarization-dependent gain optical amplifiers

Wavelength division multiplexing using light sources having a common wavelength

Multi-Band Coexistence Element

OPTICAL NETWORK UNIT TESTING IN A MULTI-WAVELENGTH PASSIVE OPTICAL NETWORK SYSTEM

POWER SUPPLY CIRCUIT, REPEATER, AND POWER FEEDING METHOD IN REPEATER

ANOMALY MONITORING OF BIDIRECTIONAL OPTICAL LINKS

WAVELENGTH DIVERSITY TURBULENCE MITIGATION METHOD AND APPARATUS FOR FREE-SPACE OPTICAL COMMUNICATIONS

OPTICAL COMMUNICATION SYSTEM, OPTICAL COMMUNICATION METHOD, RECEIVER, OPTICAL WAVEGUIDE, AND TRANSMITTER

Multi-Band Coexistence Element

OPTICAL TRANSMISSION DEVICE

OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD

OPTICAL REPEATER SYSTEM, OPTICAL REPEATER DEVICE, MASTER UNIT, AND SYNCHRONIZATION CONTROL METHOD

OPTICAL COMMUNICATION APPARATUS, OPTICAL COMMUNICATION SYSTEM AND TRANSMISSION METHOD

FABRICATION TOLERANT WAVELENGTH DEMULTIPLEXER RECEIVER

PARALLEL O-BAND AMPLIFIER

OPTICAL AMPLIFICATION SYSTEM, OPTICAL AMPLIFICATION APPARATUS AND OPTICAL AMPLIFICATION METHOD

WAVELENGTH DIVISION MULTIPLEXING ARCHITECTURE BASED ON INTEGRATED BRAGG AND ADIABATIC TE0 MODE ADD/DROP FILTER

PATH SWITCHING DEVICE, OPTICAL TRANSMISSION SYSTEM, AND PATH SWITCHING METHOD

MONITIOR WINDOW IN ASE INJECTION SEED

GAIN EQUALIZATION APPARATUS AND METHOD FOR EQUALIZING GAIN

LIGHT CONTROL DEVICE, METHOD FOR CONTROLLING LIGHT CONTROL DEVICE, AND RECORDING MEDIUM

PATH SWITCHING DEVICE, OPTICAL TRANSMISSION SYSTEM, AND PATH SWITCHING METHOD

MONITIOR WINDOW IN ASE INJECTION SEED

SERVICE OPTICAL SIGNAL TRANSMISSION METHOD, NETWORK DEVICE, AND OPTICAL NETWORK

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, PROGRAM, AND OPTICAL COMMUNICATION SYSTEM

Systems and methods directed towards a reconfigurable optical add-drop multiplexer

SYSTEMS AND METHODS FOR INCREASING AVAILABILITY IN OPTICAL NETWORKS

Optical transmission line determination apparatus, optical transmission line determination method, and non-transitory computer readable medium

Spatial optical communication system

Optical Communication System with a Simplified Remote Optical Power Supply

Optical Communication System with a Simplified Remote Optical Power Supply

Port Identification Method and Apparatus

Service and power control orchestrator

METHODS AND APPARATUS FOR HIGH-SPEED COHERENT OPTICAL INTERCONNECTS

OPTICAL RECEPTION DEVICE AND OPTICAL TRANSMISSION AND RECEPTION DEVICE

Optical communication system and optical communication method

OPTICAL TRANSMISSION APPARATUS AND CONTROL METHOD OF OPTICAL TRANSMISSION APPARATUS

Optical transmission apparatus and optical transmission method

Optical communication system using a photonic lantern

Through-Display Interferometric Proximity and Velocity Sensing

Slope gain equalizer

Optical Line Terminal, Optical Network Unit, and Optical Communications System

Parallel O-band amplifier

Suppressed out-of-band level for increasing loss margin and stable ABC operation of coded DFOS system

CENTRAL UNIT AND REMOTE UNIT

Channelized optical amplifiers and amplifier arrays

Transmission device and method of setting transmission parameter

Wavelength tuning method and related device

OPTICAL EQUALIZER, METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

System, apparatus and method for efficient optical signal amplification with system monitoring features

Optical transmission apparatus, optical transmission method, and program

Perovskite-doped fiber-amplifier for optical fiber communication using visible light

FIBER PUMP LASER SYSTEM AND METHOD FOR SUBMARINE OPTICAL REPEATER

Hybrid communication

Optical amplifier, optical amplifier equalizing method, and transmission system

Optical communications module related systems and methods

Constant amplitude coded DFOS using out-of-band signaling

Optical node device

Method and device for controlling downlink optical signal, and computer-readable storage medium

Optical communications module related systems and methods

System, apparatus and method for efficient optical signal amplification with system monitoring features

BIDIRECTIONAL OPTICAL TRANSMISSION SYSTEM AND BIDIRECTIONAL OPTICAL TRANSMISSION METHOD

Repeater and repeating method

Method and apparatus for determining maximum gain of Raman fiber amplifier

Optical fiber amplifier

OPTICAL COMMUNICATION DEVICE, AND DEVICE SUPPLYING EXCITATION LIGHT FOR OPTICAL AMPLIFICATION

Optical communications module link, systems, and methods

Optical amplifier, optical network including the same, and method for amplifying optical signal

Optical transmission apparatus and control method of optical transmission apparatus

Excitation light source apparatus and gain equalizing method

Multi-band signal processing system, joint box for multi-band signal processing system, and method for accommodating multi-band signal processing system

Signal light interruption detection device, optical amplifier, optical wavelength multiplex transmission device, and optical wavelength multiplex transmission system

Optical amplifier

Dummy-light generating device, optical transmission apparatus, and dummy-light generating method

EQUALIZER, REPEATER AND COMMUNICATION SYSTEM

Optical communications module link, systems, and methods

Amplification device with amplification stages with polarized SOAs and processing stage, for amplifying optical signals in a WDM transmission system

Optical relay device, control method, and optical transmission system

Optical transmission device that transmits wavelength division multiplexed optical signal and optical transmission system

Optical transmission apparatus and optical signal processing method

Optical amplifier, optical amplifying system, wavelength converter, and optical communication system

All-optical regeneration system for optical wavelength division multiplexed communication systems

Optical branching/insertion device, optical branching/insertion method and recording medium

Optical amplifier and related method

Raman amplifier and gain control method

Hybrid fiber amplifier and method for adjusting gain and gain slope thereof

Optical transmission apparatus and optical transmission method

Method and apparatus for equalizing link performance

Transmission apparatus, transmission system, and method of controlling average optical input power

Method and controller for commissioning wavelength division multiplexing optical network during capacity expansion

Dynamic evaluation of the optical multiplex section per-channel pre-emphasis power

Optical amplifier, optical amplifying system, wavelength converter, optical amplification method, and optical communication system

Optical amplifying apparatus and optical transmission system

Optical wavelength division node

Method of efficiently and safely adding and deleting channels in an amplified wavelength division multiplexing system

Node equipment

Optical amplifier control apparatus

Method and apparatus for gain tilt compensation over fiber optic cable

OPTICAL TRANSMISSION EQUIPMENT

WDM optical transmission system and control method thereof

OPTICAL AMPLIFIER AND LIGHT RECEIVING DEVICE

Transmission apparatus and transmission system

Optical amplifier

Optical transmission apparatus and optical signal level checking method

Optical amplifier module and dispersion compensation fiber loss detection method

TECHNIQUE FOR COMPENSATING UNDESIRED EFFECTS IN OPTICAL LINKS OF AN OPTICAL COMMUNICATION NETWORK

Multi-band hybrid SOA-Raman amplifier for CWDM

Wavelength division multiplex (WDM) optical demultiplexer

Multi-band hybrid SOA-Raman amplifier for CWDM

Optical transmission apparatus

Raman pump power control for gain flattening

Optical amplifying apparatus

Inline repeater and optical fiber communication system

Article comprising a series expandable erbium-doped fiber amplifier (SE-EDFA)

Multi-band hybrid SOA-raman amplifier for CWDM

Multi-band hybrid SOA-raman amplifier for CWDM

Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio

Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier

Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals

Optical amplifier apparatus

Apparatus and method for all-optical control of gain and gain flattening on an optical amplifier

Optical communication apparatus

Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio

Multi-band hybrid SOA-raman amplifier for CWDM

Multi-band hybrid SOA-Raman amplifier for CWDM

Raman, pump power control for gain flattening

Multi-stage optical amplifier optimized with respect to noise, gain and bandwidth

Optical system

Fiber optic booster connector

Optical amplifier apparatus and method

Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier

Multiport optical amplifier with narrowcast power equalization

Control method of optical fiber amplifier and optical transmission system

Optical transmission systems including optical amplifiers and methods of use therein

Broadband light source

Optical amplifier apparatus and method

Optical signal amplifier and method

Optically amplifying waveguide, optical amplifier module, and optical communication system