Abstract: A communications node for an optical network is disclosed. The node includes a tunable wavelength receiver for receiving optical data from source nodes at a plurality of source wavelengths and a tunable wavelength transmitter for transmitting optical data to destination nodes at a plurality of destination wavelengths. The node also includes a media access controller which creates at least one reservation map for reserving time slots and wavelengths for transmitting data to and receiving data from a plurality of nodes, made up of the source nodes and destination nodes, based upon available time slots and wavelengths in the optical network, the reservation map being based upon demand data or other data from the plurality of nodes.

Abstract: An improved burst mode receiver includes a digital phase detector, receiving an incoming signal. The receiver also includes a charge pump, receiving pulse signals from the digital phase detector to compare the incoming clock phase to the local generated clock phase and to control the charge pump, a loop filter, receiving a charge value from the charge pump and producing a control signal and a local clock generator, receiving the control signal, producing a recovered clock and supplying the recovered clock to the digital phase detector.

Abstract: A method and apparatus for reserving bandwidth in a network includes a series of elements. A demand matrix is calculated, for bandwidth requirements based upon communication needs among a plurality of nodes on the network. An integer number of time slots is provided, aligned around the network. Bandwidth is reserved for node-to-node communication based upon the demand matrix. The reserving of bandwidth reserves bandwidth between two nodes based upon time-slot alignment. Transmission is scheduled between the two nodes by reservation of wavelengths and time slots.

Abstract: A communications node for an optical network is disclosed. The node includes a tunable wavelength receiver for receiving optical data from source nodes at a plurality of source wavelengths and a tunable wavelength transmitter for transmitting optical data to destination nodes at a plurality of destination wavelengths. The node also includes a media access controller which creates at least one reservation map for reserving time slots and wavelengths for transmitting data to and receiving data from a plurality of nodes, made up of the source nodes and destination nodes, based upon available time slots and wavelengths in the optical network, the reservation map being based upon demand data or other data from the plurality of nodes.

Abstract: A method and apparatus for reserving bandwidth in a network includes a series of elements. A demand matrix is calculated, for bandwidth requirements based upon communication needs among a plurality of nodes on the network. An integer number of time slots is provided, aligned around the network. Bandwidth is reserved for node-to-node communication based upon the demand matrix. The reserving of bandwidth reserves bandwidth between two nodes based upon time-slot alignment. Transmission is scheduled between the two nodes by reservation of wavelengths and time slots.