FREE SPACE OPTICAL COMMUNICATIONS OPTICAL PHASED ARRAY REPEATER, DISTRIBUTION NODE AND OPTICAL DATA AGGREGATOR

REMOTE OPTICAL PATH SWITCHING NODE AND REMOVE OPTICAL PATH SWITCHING METHOD

OPTICAL REPEATER, OPTICAL NETWORK SYSTEM, AND OPTICAL REPEATING METHOD

OPTICAL NETWORK SYSTEM, CONTROL APPARATUS, OPTICAL RELAY APPARATUS, CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

APPARATUS FOR USE IN FOUR WAVE MIXING AND METHOD FOR CONFIGURING A PHASE ADJUSTING MEANS THEREIN TO SUPPRESS UNWANTED IDLERS

PHOTONIC GATEWAY APPARATUS

OPTICAL REPEATER, OPTICAL REPEATING METHOD, AND PROGRAM

OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION METHOD AND PROGRAM

WAVELENGTH CROSS CONNECT DEVICE, AND WAVELENGTH CROSS CONNECT METHOD

OPTICAL AMPLIFICATION SYSTEM, OPTICAL AMPLIFICATION APPARATUS AND OPTICAL AMPLIFICATION METHOD

Optical high-power amplifier circuit with switchable polarized output state

Multiplexed Telecommunication-Band Quantum Networking with Atom Arrays in Optical Cavities

OPTICAL COUPLER, COMMUNICATION METHOD, AND COMMUNICATION SYSTEM

MONITORING OPTICAL SIGNAL ARRIVAL ADJUSTMENT DEVICE, OPTICAL COMMUNICATION TRANSMISSION PATH, OPTICAL COMMUNICATION SYSTEM, AND OPTICAL COMMUNICATION TRANSMISSION PATH MONITORING METHOD

OPTICAL SIGNAL AMPLIFICATION APPARATUS AND RELATED OPTICAL COMMUNICATION DEVICE

Wireless optical communication data transmission apparatus and method

Wavelength cross connect device and wavelength cross connect method

Apparatus and method for coherent optical multiplexing 1+1 protection

OPTICAL MAIN SIGNAL PROCESSING NODE APPARATUS AND CONTROL METHOD OF OPTICAL MAIN SIGNAL PROCESSING NODE APPARATUS

Optical amplifier burst mode communication with variable duty cycle

Wavelength cross connect device and wavelength cross connect method

OPTICAL COMMUNICATION APPARATUS, OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD

Optical transponder

OPTICAL REPEATER AND OPTICAL COMMUNICATION SYSTEM

Optical network management device, optical network system, optical network management method, and optical network management program

Apparatus and method for shifting a frequency of an optical signal

Appliance remote control

Optical communication system and optical communication method

Transmission device, transmission method, and transmission system

Optical amplifier burst mode communication with variable duty cycle

Optical repeater

PATH SWITCHING APPARATUS AND PATH SWITCHING METHOD

Optical transmission system, method for analyzing thereof, terminal station device, and management device

UNDERSEA REPEATER AND LIGHT-AMPLIFYING METHOD

Optical repeater and control method for optical repeater

Optical node device

METHOD AND DEVICE FOR COMMUNICATION IN PASSIVE OPTICAL NETWORK, AND COMPUTER-READABLE MEDIUM

Optical repeater, manufacturing method of optical repeater, and relay method of optical signal

Optical amplifier burst mode communication with variable duty cycle

Deterministic quantum emitter formation in hexagonal boron nitride via controlled edge creation

Coherent gigabit ethernet and passive optical network coexistence in optical communications module link extender related systems and methods

Optical amplifier burst mode communication with variable duty cycle

Optical repeater and control method for optical repeater

Optical submarine cable system and optical submarine relay apparatus

Intelligence-defined optical tunnel network system and network system control method

Intelligence-defined optical tunnel network system and network system control method

Optical amplifier and multi-core optical fiber

Optical transmission system, method for analyzing thereof, terminal station device, and management device

Bidirectional, multi-wavelength gigabit optical fiber network

Optical repeater and control method for optical repeater

Coherent gigabit ethernet and passive optical network coexistence in optical communications module link extender related systems and methods

Optical phase-sensitive amplifier with signal noise removal

Optical amplification system and optical amplification method

Quantum memory systems and quantum repeater systems comprising doped polycrystalline ceramic optical devices and methods of manufacturing the same

Communication apparatus, communication method, and communication system

Optical transmission system, method for analyzing thereof, terminal station device, and management device

Wavelength shift elimination during spectral inversion in optical networks

Optical fiber and optical transport system

Arrayed optical amplifier and optical transmission device

Device and method for all-optical information exchange

Modified near-optimal low-latency communication paths for graded service

FREE SPACE FIBER-OPTIC CONNECTOR

Frequency conversion device, wavelength multiplex device and frequency conversion method

Device for monitoring an optical fibre

Device of optical passive repeater used in optical multimode communication

Repeater, excitation light supply device used for the same, and excitation light supply method

Plastic optical fiber bus network using tapered mixing rods

WIRELESS RELAY SYSTEM AND EMPLOYMENT METHOD THEREOF

Optical amplification device and method of controlling optical module

Bidirectional submarine repeater using unidirectional amplification

Extended dynamic range optical amplifier

PON supervision using OTDR measurements

Linecards with pluggable interfaces for pluggable optical amplifiers and other pluggable devices

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

Cascaded optical parametric amplifier with polarization exchange for noise reduction

Excitation light distribution device, excitation light distribution method, optical amplification system and node device

Optical signal processing

Optical amplifier that controls level of optical output signal

Reflective semiconductor optical amplifier for optical networks

Optical transport system for two-carrier signals

Spatial domain based multi dimensional coded modulation for multi Tb per second serial optical transport networks

Optical branching unit, optical communication system, and optical multiplexing method

Circuit and method for controlling multi-channel power

Apparatus and method for two-stage optical network

Relay station arrangement method and relay station arrangement device

Optical amplifier

Silicon integrated photonic optical parametric amplifier oscillator and wavelength converter

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

System and method for mitigating polarization hole burning

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

Extender box, data transmission method and passive optical network system

Method for producing terahertz electromagnetic carrier waves

System and method for programmably adjusting gain and frequency response in a 10-gigabit ethernet/fibre channel system

Multi-stage erbium-doped fiber amplifier with a single programmable logic device control circuit and method of controlling thereof

Network management system, repeater, and repeating method

OPTICAL SIGNAL PROCESSING DEVICE AND METHOD OF PROCESSING OPTICAL SIGNAL

OPTICAL INTERFACE DEVICE

Optical signal processing device

Supervisory controlling method and supervisory controlling system of optical repeater

Method and apparatus for enhancing signal-to-noise power ratio in optical fiber amplifiers

Optical fiber transport devices and optical communication networks

Optical amplification system and optical amplification method

Optical Amplifier With Time-Multiplexed Pump Laser

OPTICAL AMPLIFYING DEVICE AND OPTICAL TRANSMISSION SYSTEM

Quantum repeater

Light source in optical transmission system, waveform shaper, optical pulse train generator and optical reproduction system

Real-time terahertz imaging system for the detection of concealed objects

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

OPTICAL AMPLIFICATION APPARATUS AND OPTICAL COMMUNICATION APPARATUS

Silicon integrated photonic optical parametric amplifier oscillator and wavelength converter

Nonlinear chirped pulse fiber amplifier with pulse compression

Optical surge suppressive type optical amplifier

Multistage fiber amplifier and method for adapting a pump power of a multistage fiber amplifier

Fiber amplifier with integrated fiber laser pump

Optical surge suppresive type optical amplifier

Optical network and amplifier node therefore

Low loss fiber optic link using an optical amplifier

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

Multimode fiber optic amplifier and method of amplifying optical signals

System and method for programmably adjusting gain and frequency response in a 10-gigabit Ethernet/fibre channel system

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

Multimode fiber optic amplifier and method of amplifying optical signals

Optical fiber communication system using remote pumping

Optical amplifier and optical fiber

Methods and apparatus for selective signal amplification

Methods and apparatus for multiple signal amplification

Quality monitoring of an optical fiber amplifier

Dispersion-compensating system

Amplified optical ring transmission system

Method and system for suppressing ASE noise

Cascaded pump delivery for remotely pumped erbium-doped fiber amplifiers

Temperature control in an optical amplification system

Optical signal amplification device

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

Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system

Observation apparatus and observation system

Optical transmission system having noise-elimination function

Optical communication method and apparatus

Optical multiplexing method and optical multiplexer, and optical amplifier using same

Apparatus and method for upgrading a narrow-band optical communication system to a system with wide spectral band optical amplification

Optical apparatus with loss compensation capability and optical amplifier for loss compensation

Optical transmission systems and optical amplifiers for use therein

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

Temperature-controlled flexible optical circuit for use in an erbium-doped fiber amplifier and method for fabricating the flexible optical circuit