TECHNOLOGY-AWARE OPTICAL DEVICE FOR AN OPTICAL NETWORK

VERTICALLY INTEGRATED OPTICAL TRANSCEIVERS FOR WAVELENGTH DIVISION MULTIPLEXING

Broadband Wavelength Division Multiplexing For Free Space Optical Communications

WAVELENGTH-DIVISION-MULTIPLEXING OPTICAL CIRCUIT IMPLEMENTED IN PHOTONIC INTEGRATED CIRCUIT FOR OPTICAL TRANSMITTER

Broadband Wavelength Division Multiplexing For Free Space Optical Communications

OPTICAL SPLITTING/COUPLING DEVICE, OPTICAL SUBMARINE CABLE SYSTEM, AND OPTICAL SPLITTING/COUPLING METHOD

OPTICAL COMMUNICATION DEVICE THAT TRANSMITS WDM SIGNAL

OPTOELECTRONIC SYSTEMS AND METHODS FOR INSPECTION OF OPTICALLY ENCODED DATA

Free-Space Optical Communications Link Using Direct Laser Modulation

Optoelectronic systems and methods for inspection of optically encoded data

PASSIVE DISTRIBUTION SYSTEM USING FIBER INDEXING

Wavelength Agile Multiplexing

DATA TRANSMISSION METHOD, RADIO FREQUENCY UNIT, BASEBAND UNIT, AND COMMUNICATION SYSTEM

Laser grid structures for wireless high speed data transfers

TURN UP AND EXPRESS TRAFFIC VALIDATION FOR COMMUNICATION SYSTEMS

Wavelength-division-multiplexing optical circuit implemented in photonic integrated circuit for optical transmitter

TUNABLE OPTICAL ADD/DROP MULTIPLEXER

Efficient spectrum allocation in a multi-node optical network

Process margin relaxation

WDM1r combiner for PON

Laser grid structures for wireless high speed data transfers

Distribution matching for probabilistic constellation shaping with an arbitrary input/output alphabet

Apparatus, systems, and methods for optical channel management

Optical signal processor

PASSIVE DISTRIBUTION SYSTEM USING FIBER INDEXING

Signal processing apparatus and signal processing method

Wavelength agile multiplexing

Apparatus and methods for receiving signals using optical lens as a beamformer

Efficient spectrum allocation in a multi-node optical network

DIGITAL BANDWIDTH ALLOCATION ON MULTIPLE DIGITAL SUBCARRIERS USING PROBABILISTICALLY SHAPED MODULATIONS

Optoelectronic systems and methods for inspection of optically encoded data

Process margin relaxation

Optical branching/coupling device and optical branching/coupling method

Method and system for spread spectrum code acquisition

Apparatus, systems, and methods for optical channel management

Reconfigurable optical add-drop multiplexer, optical network, and optical signal processing method

Optical transmission control method and optical transmission system

Laser grid structures for wireless high speed data transfers

System for achieving multiple bits per symbol in optical communications systems by combining spatial domain multiplexing and pulse amplitude modulation

Frequency division multiple access optical subcarriers

Passive distribution system using fiber indexing

Method and system for spread spectrum code acquisition

Photonic lambda switching for satellites

Optical system including a reconfigurable optical add/drop multiplexer and filters

Optical branching/coupling device and optical branching/coupling method

Submarine branching apparatus, optical submarine cable system, and optical communication method

Apparatus, systems, and methods for optical channel management

Device and system for coherently recombining multi-wavelength optical beams

APPARATUS AND METHOD TO REDUCE THE IMPACT OF COHERENT CROSSTALK IN OPTICAL NETWORKS

Optical Module and Network Device

Wavelength division multiplexing module

Method and apparatus for matching fiber connections for ROADM service

RADIO-OVER-FIBER COMMUNICATION BEAMFORMING DEVICE BASED ON ARRAYED WAVEGUIDE GRATING AND METHOD THEREOF

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

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

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

Optical branching/coupling device and optical branching/coupling method

Open, modular, and scalable optical line system

Method and system for spread spectrum code acquisition

Distribution matching for probabilistic constellation shaping with an arbitrary input/output alphabet

Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting

Laser grid structures for wireless high speed data transfers

Apparatus, systems, and methods for optical channel management

Repeaterless passive optical add/drop multiplexed fiber network

Optical node

OADM node and method in WDM system

N-DEGREE CDC WSX ROADM

N-DEGREE CDC WSX ROADM

Passive distribution system using fiber indexing

Chirp managed laser generation for next generation passive optical networks

Wavelength division multiplexing module

System and method to add alien wavelength channels to optical line system

Multi wavelength routing plane optical architecture

Optical multiplexing and demultiplexing device, and method of controlling optical multiplexing and demultiplexing device

FlexE GMPLS signaling extensions

Method and apparatus for optical node construction using software programmable ROADMs

Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting

Node device and method for controlling node device

Reconfigurable add/drop multiplexing in optical networks

Optical and RF techniques for aggregation of photo diode arrays

MINIMIZING BANDWIDTH NARROWING PENALTIES IN A WAVELENGTH SELECTIVE SWITCH OPTICAL NETWORK

Low cost gain clamped EDFA for TWDM passive optical network application

OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL SIGNAL

Memory access system, apparatus, and method

Passive distribution system using fiber indexing

Optical add/drop multiplexer branching unit

Optical add-drop multiplexer and branching unit

Low cost secure ROADM branching unit with redundancy protection

Optical receiver that has function to detect signal superimposed on optical signal and method for receiving optical signal

Reconfigurable optical add-drop multiplexer apparatus

Transmitting device and transmission control method

Optical ring network

Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node

Transport apparatus, transport system, transport method, and storage medium on which program has been stored

Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting

Wavelength division multiplexing module

Low cost secure submarine ROADM branching unit using bidirectional wavelength-selective switch

Optical switch

Optical switch

Apparatuses, systems, methods, and computer program products for add-drop multiplexing

Telecommunications network node linking a metropolitan area network with at least one access network

N-DEGREE CDC WSX ROADM

Symmetric optical multiplexing node

Scalable hybrid packet/circuit switching network architecture

Upscaling 20G Optical Transceiver Module

Secure wavelength selective switch-based reconfigurable branching unit for submarine network

FIBER OPTIC SENSING SYSTEMS AND METHODS OF OPERATING THE SAME

Submarine reconfigurable optical add/drop multiplexer with passive branching unit

Passive distribution system using fiber indexing

Optical network apparatus for self-seeded communications

Transmission device, transmission system, and method for adjusting passband

Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node

Transmission device and transmission method

Method and apparatus for implementing a multi-dimensional optical circuit switching fabric

Service edge hub device and methods in an optical network node

Fault recovery in branched optical networks

Minimizing bandwidth narrowing penalities in a wavelength selective switch optical network

Diverging device with OADM function and wavelength division multiplexing optical network system and method therefor

Multi-band reconfigurable optical add-drop multiplexer (ROADM) system

Optical terminating apparatus for optical path network

Multiband reconfigurable optical add-drop multiplexing with converged signal addition and removal

Method and apparatus for a reconfigurable optical add/drop module with loop-back functions

OPTICAL TRANSMISSION DEVICE

METHOD AND SYSTEM FOR PROVIDING A SHARED DEMARCATION POINT TO MONITOR NETWORK PERFORMANCE

Optical switching architectures for nodes in WDM mesh and ring networks

Transponder Aggregator-based optical loopback in a MD-ROADM

Multi-degree reconfigurable optical add-drop multiplexing

WAVELENGTH MULTI-CASTING METHOD IN MULTI-RING NETWORK, MULTI-RING NETWORK DEVICE, AND MULTI-RING NETWORK NODE

Contentionless Add-Drop Multiplexer

Meshed protected passive optical access network structure and optical network unit structure therefore

Methods for expanding cross-connect capacity in a ROADM optical network

SPECTRALLY EFFICIENT MODULATION FOR AN OPTICAL-TRANSPORT SYSTEM

Interferometer configured for signal processing in an interference path

Control of token holding in multi-token optical network

Network element

Superimposed signal detection circuit and optical node equipment

Optical spectrum recovery

Method for automatic configuration of an optical network element

Communication system, communication device, and communication method

Optical node apparatus, method for checking connection in node apparatus and program thereof

Optical-layer traffic grooming in flexible optical networks

Optical transmission device and optical filter circuit

Minimizing bandwidth narrowing penalties in a wavelength selective switch optical network

OPTICAL RING NETWORKS HAVING NODE-TO-NODE OPTICAL COMMUNICATION CHANNELS FOR CARRYING DATA TRAFFIC

Optical transmission method and apparatus using OFDM

Add and drop circulator

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

Optical switching device, optical add device, and optical drop device

Wavelength division multiplexing module

Reconfigurable optical add drop multiplexer core device, procedure and system using such device, optical light distributor, and coupling-ratio assigning procedure

METHOD AND DEVICE FOR TUNABLE OPTICAL FILTERING

Device and method for colorless optical switching

M×N wavelength selective switch (WSS)

Optical communications network node and method of controlling data transmission between optical communications network nodes

Directionless and colorless reconfigurable optical add/drop multiplexer

System and method for cross-phase modulation noise reduced transmission in hybrid networks

Optical switching network

OPTICAL SWITCHING NETWORK

OPTICAL SWITCHING NETWORK

Optical add drop multiplexer

Optical switching architectures for nodes in WDM mesh and ring networks

Transponder Aggregator Without Wavelength Selector for Colorless and Directionless Multi-Degree ROADM Node

ROADM SYSTEMS AND METHODS OF OPERATION

Power optimization of optical receivers

Optical transmission system and optical transmission method

Multi-pole optical signal switch

Switch node

Wavelength switch

Medium access control device and method for optical packet-switched metro WDM slotted-ring networks

Methods and systems to stabilize an optical network against nodal gain changes

Two-phase arbitration mechanism for shared optical links

Node, data processing system, and data processing method

Optical OADM transmission system with loopback

Methods for expanding cross-connect capacity in a ROADM optical network

Noise reduction in optical communications networks

Optical add/drop multiplexer

Data transmission method, data processing node, and data transmission system

Branching configuration including separate branching unit and predetermined wavelength filter unit and system and method including the same

Methods and apparatus for performing directionless and contentionless wavelength addition and subtraction

High-capacity switch

Optical relay device and optical relay transmission system

Mechanism to detect an unstable wavelength channel and limit its impact on a ROADM network

METHOD AND DEVICE FOR HITLESS TUNABLE OPTICAL FILTERING

High-degree reconfigurable optical add-drop multiplexing systems using bi-directional wavelength selective switches

M×N wavelength selective optical switch

OPTICAL ADD/DROP MULTIPLEXING SYSTEM, OPTICAL ADD/DROP MULTIPLEXER AND OPTICAL PATHWAY DETOUR PROGRAM

Optimized directionless optical add/drop module systems and methods

Growable multi-degree ROADM

Degree extending method and optical hub node apparatus

METHOD AND APPARATUS FOR INTERCONNECTING A PLURALITY OF OPTICAL TRANSDUCERS WITH A WAVELENGTH DIVISION MULTIPLEXED OPTICAL SWITCH

Apparatus and method for cross-connecting optical path in wavelength division multiplexing system

Optical transmission device

Communications Network

Optical transmission apparatus

GANGED OPTICAL SWITCH

Optical transport system architecture for remote terminal connectivity

Optical add/drop multiplexer including reconfigurable filters and system including the same

Optical amplification system and optical amplification method

Optical remote node device and support equipment for constructing and extending fiber-optic access networks

Transmission-path-type specifying apparatus and transmission-path-type specifying method

Method and system for tunable optical filtering

Methods and apparatus for constructing large wavelength selective switches using parallelism

Wavelength division multiplexing filter, wavelength division multiplexing system, and wavelength division multiplexing method

Reconfigurable optical add/drop multiplexer and procedure for outputting optical signals from such multiplexer

Methods and apparatus for reconfigurable add drop multiplexers

Optical adding and dropping device and optical transmission apparatus

Wide free-spectral-range, widely tunable and hitless-switchable optical channel add-drop filters

Wavelength division multiplexing module

Modular all-optical cross-connect

Methods and apparatus for performing directionless wavelength addition and subtraction within a ROADM based optical node

Wavelength-switched optical add-drop multiplexer with wavelength broadcasting capability

Optical add/drop multiplexer

Method and apparatus for transferring WDM signals between different wavelength division multiplexed optical communications systems in an optically transparent manner

Orthogonal frequency division multiple access based optical ring network

Signal distribution module for a directionless reconfigurable optical add/drop multiplexer

Method and System for Communicating Optical Traffic

Optical bypass method and architecture

Modular WSS-based communications system with colorless add/drop interfaces

Banded semiconductor optical amplifiers and waveblockers

Method and device for tunable optical filtering

Optical ring networks having node-to-node optical communication channels for carrying data traffic

Modular add/drop multiplexer including a wavelength selective switch

Optical transmission device, optical transmission method, and recording medium thereof

Method, Apparatus And System For Optical Channel Group Shared Protection

Systems and methods for a multiple-input, multiple-output controller in a reconfigurable optical network

Reconfigurable optical add drop multiplexer core device, procedure and system using such device, optical light distributor, and coupling-ratio assigning procedure

Centralized resource management in wavelength selective switch based wavelength cross connect systems

Methods and systems to stabilize an optical network against nodal gain changes

Passive fiber organizer for mesh network node interconnections

COLORLESS OPTICAL DEMODULATOR FOR DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DWDM SYSTEMS

Method and system for wavelength division multiplex optical signal combining

Modular all-optical cross-connect

Method and system for band blocking in an optical telecommunication network

Optical transmission device

Optical transmission apparatus and method of controlling the same

Optical transmission apparatus having OADM function

Multifunctional and reconfigurable optical node and optical network

MULTIFUNCTIONAL AND RECONFIGURABLE OPTICALNODE AND OPTICAL NETWORK

Modular add/drop multiplexer including a wavelength selective switch

Network managing apparatus, optical add/drop multiplexer, and network managing method

Wavelength routing optical switch

System and method for bandwidth allocation in an optical light-trail

Method and System for a Distributed Wavelength (Lambda) Routed (Dlr) Network

Optical switching architectures for nodes in WDM mesh and ring networks

Flexible open ring optical network and method

Flexible open ring optical network and method

Optical signal amplifying triode and optical signal transfer method, optical signal relay device, and optical signal storage device using the same

Optical signal amplifying triode and optical signal transfer method, optical signal relay device, and optical signal storage device using the same

Flexible node architecture with full protection

Optical circuit and linear system dedicated node apparatus, linear system WDM network, and tree system WDM network using such

System and method for bandwidth allocation in an optical light-trail

Optical switch router

Optical transmitter

Optical bypass method and architecture

Optical double sideband modulation technique with increased spectral efficiency

Optical add/drop device, optical add/drop system, and optical signal add/drop method

Wavelength-selective routing using an optical add/drop architecture

Optical transmission apparatus

System and method for protecting optical light-trails

Method and system for improving upstream efficiency in extended broadcasting networks

System and method for implementing optical light-trails

Wavelength grid for DWDM

Method and system for time-sharing transmission frequencies in an optical network

System and method for conserving resources in an optical storage area network

Method and system for utilizing virtual local access network addressing in optical networks

Through channel loss prevention at a WDM node

Maximising power in optical communication networks

Optical add/drop multiplexer

System and apparatus for dropping and adding optical data streams in an optical communication network

Optical add/drop multiplexer with reconfigurable add wavelength selective switch

Optical demultiplexing method and optical multiplexing method, and optical transmission apparatus using same

Optical add/drop multiplexer

System and method for setting a tunable filter in an optical network

Modular wavelength selective switch

Optical signal amplifying triode and optical signal transfer method, optical signal relay device, and optical signal storage device using the same

Hybrid optical ring network

Optical add/drop multiplexer having a banded channel configuration

Optical add/drop multiplexer having an alternated channel configuration

Method of upgrading an optical transmission network, an optical transmission network, and associated optical transmission nodes

Optical add/drop device

Optical wavelength division multiplexed system using wavelength splitters

Optical bypass method and architecture

Add/drop node for an optical communications network

Optical network with selective mode switching

Wavelength division multiplex optical telecommunications network

Optical frequency division multiplexing network

Upgraded flexible open ring optical network and method

Optical ring networks with failure protection mechanisms

Coupler-based optical cross-connect

Noise reduction in optical communications networks

Reconfigurable optical node with distributed spectral filtering

Method and system for increasing network capacity in an optical network

Protected bidirectional WDM network

Variable-bandwidth multi-granularity optical add/drop network

Bidirectional multichannel optical telecommunication system

Branching unit with full or partial broadcast of wavelengths

Optical network with sub-band rejection and bypass

System and method for communicating optical traffic between ring networks

Optical device with tunable coherent receiver

Method and system for management of directly connected optical components