SYSTEM AND METHOD FOR TRANSMITTING A DATA STREAM IN A NETWORK

System and method for transmitting a data stream in a network

Transmission system, transmission device, and transmission method

Transmission system, transmission device, and transmission method

System and method for transmitting a data stream in a network

Protection method and optical communication system

Raman amplifier and gain control method

Wavelength multiplexer, and method and program for identifying failed portion

Span loss monitoring system, supervisory signal sending apparatus and supervisory signal receiving apparatus

Method, circuitry and apparatus for outputting a stable optical signal in a dense wavelength division multiplexing device during fast changes of operating conditions

Method and Apparatus for Establishing a Connection

Wavelength path communication node apparatus, wavelength path communication control method, and recording medium

Route calculation system, network management device, route calculation engine, route calculation method and program product

Circuit for transmitting signals in a network node, particularly for a channel card for an optical wavelength division multiplex (WDM) signal trasmitting device

Method and apparatus for sharing common capacity and using different schemes for restoring telecommunications networks

Group switching method and apparatus for dense wavelength division multiplexing optical networks

Communication between data centers using a multi-core fiber