Wavelength management in an optical network

Details Wavelength management in an optical network Wavelength management in an optical network

2006-02-14

2006-02-14

Chan, Jason (Department: 2633)

Optical communications

Transmitter and receiver system

Including feedback from receiver

C398S092000, C398S093000, C398S094000, C398S095000, C398S165000, C398S166000, C398S037000, C398S001000

Reexamination Certificate

active

06999686

ABSTRACT:
A system for managing signals in an optical network is provided. When a signal is originated by a source node for transmission to a destination node, the source node generates a message. Upon receiving this message, the destination node responds by sending an acknowledgment. Intermediate nodes examine these messages, allowing the nodes to obtain information which is used to take appropriate actions. A node is able to detect a switching event and the output power levels of signals leaving the node are maintained at a predetermined level. When transmission components transmitting a signal are powered up, a sequence of messages is exchanged, allowing the nodes to activate their transmission components in a sequential manner, avoiding signal level interference. Another sequence of messages is exchanged during protection line switching, allowing the nodes to adjust their respective transmission components in a sequential manner so as to avoid a “ringing” effect.

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