Countermeasures for idle pattern SRS interference in ethernet optical network systems

System and method for managing different transmission architectures in a passive optical network

System for utilizing wavelength reachability and wavelength occupation status information to describe cross-connection capabilities in optical networks

Supervisory control light transmitting method for a wavelength division multiplexing transmission system and wavelength division multiplexing transmission apparatus

DWDM optical network planning method

Method and system for determining a network topology

Positive optical amplifier power transient suppression

Communications method, particularly for a mobile radio network

Long reach optical network

System and method for improving the efficiency of routers on the internet and/or cellular networks and/or other networks and alleviating bottlenecks and overloads on the network

Optical wavelength multiplexing system, optical wavelength multiplexing method, and computer product

Wavelength conversion apparatus in time division multiplexing—passive optical network system based on wavelength division multiplexing system, and optical transmission apparatus and method using the same

System and method for transmitting optical markers in a passive optical network system

Optical signal transmission device and optical communication network

Mechanism for tracking wavelengths in a DWDM network without specialized hardware

Optical network architectures and optical communication schemes

Wavelength division multiplex optical ring network

Fault localization apparatus for optical line using subcarrier multiplexing (SCM) monitoring signal and method thereof

PREDICTIVE SCHEDULING OF DATA PATH CONTROL

Multicast transmissions in optical burst transport

Method and apparatus for transporting local area network signals in optical transport network

METHOD AND RECEIVER TO INCREASE THE SPECTRAL EFFICIENCY OF DPSK MODULATION FORMAT

Optical communication apparatus and optical add/drop apparatus

Network System, Master Device, Slave Device, and Start-Up Control Method for Network System

Traffic signal node cross scheduling method and system

Optical identification demodulation method and system

Optical network system

Coordination of control operations in an optical network

Optical network design method and storage medium for storing design program

Wavelength Division Multiplexing Passive Optical Network System Adopted Dual Central Office

Wavelength superimposing device, manufacturing method therefor, and WDM network system

Signal relay apparatus, node apparatus, network system, virtual-link generating method, path calculating method, and computer product

Hybrid optical transceiver module and passive optical network including the same

Wavelength selection

Method and system for random channel assignment in WDM based passive optical networks

Method and apparatus for photonic resiliency of a packet switched network

Station-side optical network terminal apparatus, subscriber-side optical network terminal apparatus, and optical communication system

Information-processing system using free-space optical communication and free-space optical communication system

Multi-chassis router with multiplexed optical interconnects

Method and apparatus for providing integrated symmetric and asymmetric network capacity on an optical network

Optical network terminal management and control interface (OMCI) containing a description of the OMCI

Path establishment

Providing optical signal regeneration information at the control plane

STERILIZATION SYSTEM AND METHOD WITH HEAT PUMP OPERATED VAPORIZER/CONDENSER

Wavelength-multiplexing optical transmission system and wavelength-multiplexing optical transmission method

Optical Transmission System of Ring Type

Fiber and wire communication system

WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK SYSTEM

Multiservice private network and interface modules for transporting, on such a network, data in different formats

Method and apparatus of routing convergence in control plane of an intelligent optical network

WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK SYSTEM

Wavelength reconfigurable optical network

Link connectivity verification method

Method and device for surveillance of optical connection paths for a transparent optical network

WDM-PON system with optical wavelength alignment function

Communication apparatus, communication line diagnosis method, program and recording medium

Maximization of throughput under a fairness constraint in DWDM-based optical networks

Tracing an optical path of a communication network

Multi-bit-rate optical communication method, optical network unit, and optical line terminal

Method and system for configuring a connection-oriented packet network over a wavelength division multiplexed optical network

Optical transmission equipment and optical add-drop multiplexer

Wavelength Division Multiplexing Passive Optical Network System

Virtual protection channel for fiber optic ring network

Noise tone avoidance in optical networks

Adaptive optical transceiver for fiber access communications

System and method for transmitting traffic in a plurality of passive optical networks

Method as a pre-condition for a gain control, optical access network, central station and terminal

Limited perimeter vector matching fault localization protocol for survivable all-optical networks

Multi-channel protection switching systems and methods for increased reliability and reduced cost

Optical transmission apparatus

Wavelength selective switch design configurations for mesh light-trails

Optical Network Unit Activation

PATH SETTING METHOD, NODE DEVICE, AND MONITORING/CONTROL DEVICE

Multiple port symmetric reflective wavelength-selective mesh node

Multiple port symmetric transmissive wavelength-selective mesh node

High-speed fiber-to-the-premise optical communication system

High-speed fiber-to-the-premise optical communication system

Optical network design method

Optical communication system

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

Method and system for hybrid protection in optical networks

System and method for seamless integration of CWDM and DWDM technologies on a fiber optics infrastructure

Wavelength division multiplexed optical communication system with rapidly-tunable optical filters

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

Method for designing optical network, and computer readable medium

Processing of optical performance data in an optical wavelength division multiplexed communication system

Polarization scrambler, optical add/drop multiplexer, optical route switching apparatus and wavelength division multiplexing optical transmission system

Packet communication network and packet communication method

Relay node in optical networks

Station-side apparatus of wavelength multiplexing PON system, wavelength and network address allotting method and program thereof

Ring optical transmission network access node

Information processing device, failure notification method, and computer product

Flexible open ring optical network and method

Wavelength upgrade for passive optical networks

Path routing computation method and optical communication network applying path routing computation method

Communication path calculation method and module

Method and apparatus for supporting operations and maintenance functionality in an optical burst switching network

Method of WDM channel tagging and monitoring, and apparatus

Integrated optical service channel and quantum key distribution channel

Simple fibre channel speed negotiation across transport

Flexible open ring optical network and method

Optical data synchronization scheme

Wavelength Division Multiplexed (WDM) Ring Passive Optical Network (PON) with Route Protection for Replacement of Splitter Based Passive Optical Networks

Power level management in optical networks

Buffering schemes for optical packet processing

Optical transmission systems including optical protection systems, apparatuses and methods

Apparatus and method for transferring data bursts in optical burst switching network

Methods and systems for providing reliable multicast service in a WLAN system

Broad- and inter-band multi-wavelength-reference method and apparatus for wavelength measurement or monitoring systems

System and method for extending reach in a passive optical network

Optical transmission network

Hybrid passive optical network

Digital overlay

Method for transmitting a burst using wavelength separation in optical burst switching system

Methods and apparatus for optimizing utilization in reconfigurable optical add-drop mulitplexer based ring network

Use of beacons in a WDM communication system

Method and system for increasing downstream bandwidth in an optical network

Integrated optical transmitter

System and method for managing network components in a hybrid passive optical network

Fiber and wire communication system

Methods and systems for the performance analysis of fiber optic networks

Recovery mechanism for 10 GE optical transport network wavelength division multiplexing ring

Interconnections and protection between optical communications networks

Wavelength tracking apparatus and method in WDM-PON system

Signaling protocol for p-cycle restoration

Method of increasing number of subscribers using time division duplexing technology in wavelength division multiplexing/Ethernet passive optical network system

Dynamic wavelength allocation apparatus and method

Method and system for compensating for optical dispersion in an optical signal

Fiber-to-the-premise optical communication system

Method and apparatus device for initializing an end-to-end link in a fiber optic communications system

Dynamic wavelength allocation device using 3R wavelength converter having limited wavelength conversion range and method thereof

Wavelength service providing apparatus in all-optical network

Node device, optical communication network, optical path reserve method and computer-readable medium comprising a program

Flexible node architecture with full protection

Optical tunable asymmetric interleaver and upgrade for dense wavelength division multiplexed networks

Protection switching method and apparatus for nodes in a resilient packet ring network

Optical multiple transmission method, optical network and optical transmission apparatus

Fast optical switch

Dynamic blocking of token-controlled data transmissions in communication networks

Optical path cross-connect and optical wavelength multiplexing diversity communication system using the same

Device and method for transmitting data traffic in optical transport network

Optical communication systems and methods of operating such optical communication systems

Photonic network packet routing method and packet router for photonic network

System and method for optical network demarcation

Photonic network packet routing method and packet router for photonic network

System and method for distributing traffic in an optical network

System and method for transmitting upstream traffic in an optical network

Distribution node for a wavelength-sharing network

Upgradeable passive optical network

Hybrid passive optical network using shared wavelengths

Distribution components for a wavelength-sharing network

System and method for traffic distribution in an optical network

Optical autodiscovery for automated logical and physical connectivity check between optical modules

Wireless communication subsystem with a digital interface

Optical ring networks using circulating optical probe in protection switching with automatic reversion

Transmission system and its protection method

Wavelength division multiplexing apparatus

System and method for communicating optical signals upstream and downstream between a data service provider and subscribers

Time and wavelength-shifted dynamic bidirectional system

Method for conveying management information

Method and apparatus for transmitting low-rate traffic signal in optical transport network

Method and system for designing ring-based telecommunications networks

Power Line Communications Device and Method of Use

Optical transmission apparatus

Optical receiving apparatus and dispersion compensating method therein

System and methods for quantum key distribution over WDM links

Method and system for quantum key distribution over multi-user WDM network with wavelength routing

Multi-ring resilient packet ring add/drop device

Optical transmission system constructing method and system

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

Optical packet network system

Fast optical switch

Method and apparatus for restoring a network

Optical transmission apparatus

FTTP IP video overlay

Optical, network, node apparatus and method for recovery path fault

Method of determining at least one variable of a WDM optical network

Reconfigurable multichannel (WDM) optical ring network with optical shared protection

Optical WDM transmission system

Wavelength division multiplexing passive optical networks to transport access platforms

Discovery of an adjacent network element within a network data plane

Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence

Method for operating a switched optical network

Heuristic assignment of light-trails in an optical network

Control of parameters in a global optical controller

Optical network equipment and optical network

Optical communication system

Signal identification in optical communications networks

OPTICAL NETWORK

Method and system for avoiding amplified spontaneous emission loops in an optical network

Automated optical transport system

Resilient packet ring protection over a wavelength division multiplexing network

WDM system

Optical bypass method and architecture

Optical characteristic measuring apparatus

Method and apparatus for automatically upgrading passive optical networks (PONs)

Optical double sideband modulation technique with increased spectral efficiency

Bidirectional time division multiplexing optical communication system

Dynamic bandwidth allocation and service differentiation for broadband passive optical networks

Multi-channel transmission of quantum information

(D) WDM communications network using back-up light sources

Method and system for mitigating Raman crosstalk in an Ethernet passive optical network

Multi-hop optical communication network

All-optical header processing and packet switching

Packet and optical routing equipment and method

Method of transmitting an optical signal in an optical transmission system and optical transmission system for implementing such a method

Method of allocating bandwidth in an optical network

Modular, reconfigurable optical switching device

Inter-network optical fiber sharing system

System and method for shaping traffic in optical light-trails

Time and wavelength division multiplexed passive optical network

Wavelength division multiplexed light source and passive optical network using the same

Method for optimization of dispersion compensation, transponder and its use in an optical network with path protection

Drop-and-continue device

Wavelength division multiplexing transmission system, wavelength division multiplexing transmission apparatus and method for controlling wavelength division multiplexing transmission apparatus

Optical band scanning monitor system and method

Apparatus For and Method of MAC Based Transmission in WDM Optical Ring Networks

System and method for implementing optical light-trails

Station-side apparatus in optical communication

Method and system for establishing transmission priority for optical light-trails

All-optical bi-stable devices

Variable communication capacity data transmission device and data transmission device

Power line communications device and method

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

Method for determiming a link path and a corresponding unoccupied wavelength channel

Core network system and optical transmission equipment

Method and device for managing heterogeneous communication networks

System and method for operating a wideband return channel in a bi-directional optical communication system

Wavelength division multiplexed passive optical network system using light source wavelength-locked by injected incoherent light

Sideband filtering of directly modulated lasers with feedback loops in optical networks

Wavelength division multiplexing-passive optical network

Link system for photonic cross connect and transmission apparatus

Optical add-drop multiplexer, and optical network equipment using the same

Optical network system and transmission apparatus

Optical channel assigning system and method of assigning data to optical channels in optical network

Using superimposed ASK label in an all-optical label swapping system and method thereof

Method, system, and storage medium for preventing duplication and loss of exchanges, sequences, and frames

Method for optimizing enhanced DWDM networks

Self-healing passive optical network

Method for determining the network load in a transparent optical transmission system

Arrangement for avoiding node isolation in all-optical communication networks

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

Method and system for interconnecting end systems over an optical network

Optical path re-arrangement method for optical communication network

Wavelength-division multiplexing-passive optical network

Methods and apparatuses to provide a wavelength-division-multiplexing passive optical network with asymmetric data rates

Hybrid passive optical network

Optical communication network system

Wavelength-division-multiplexed passive optical network

System and method of time-slotted optical burst switching

Multi switching architecture and method in optical burst switching network

System and method for mitigating dispersion slope in an optical communication system

Optical node and optical add/drop multiplexer

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

System and method for re-using wavelengths in an optical network

Method and apparatus for protecting optical signals within a wavelength division multiplexed environment

Method and system for shared optical protection

Method and system for shared optical regeneration

Method for visualization of optical network topology

Wavelength division multiple access central station, wavelength division multiple access user interface, and optical layer connection service method in optical network using wavelength division multiple access scheme

MPLS application to optical cross-connect using wavelength as a label

Path protection method for a WDM network and according node

Optical access network method, optical access network, and optical switch for optical access network

Suppression of power transients in optically amplified links

Passive optical network system and method of transmitting broadcasting signal in same

Optical communication network

Optical transmission apparatus and method

Method for operating wavelength-division-multiplexed passive optical network

Wavelength-division multiplexing passive optical network

Passive optical network

Ring type optical transmission system and optical apparatus connected to same

Optical ring network for extended broadcasting

Method for optimizing the optical power in an optical network and an optical network

Through channel loss prevention at a WDM node

Wavelength division multiplexing apparatus

D(WDM) communications network employing periodic spectral multiplex processing

Optical network for bi-directional wireless communication

Power line communications device and method of use

Power line communications system and method of operating the same

Optical access node

Distributed intelligence MAC protocols for DWDM ring networks

System and apparatus for a carrier class WDM PON providing trunk protection with increased fiber utilization, distance and bandwidth

Protection switching arrangement for an optical switching system

Optical fiber protection switch

Optical packet switching

Pluggable optical diplexer/triplexer module

Optical network and optical add/drop apparatus

Method for optimizing path of optical network, and optical transmission node for realizing path optimization

Passive optical network of bus structure

Package starting control device

Optical wavelength division multiplexing access system

Optical routing apparatus and method

Laser power grid

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

WDM layer-based optical chanel protecting device and method thereof

Optical signal encoding apparatus and decoding apparatus

Station for optical network suitable for inserting packets into a stream of packets in transit

In-band wavelength conversion wavelength buffering and multi-protocol lambda switching

Method and system for a data centric architecture in an optical network

Communication system linking between user terminals, and user terminal connecting unit and communication method used in same communication system