Alphion Corporation

Kuo-Ming Lee

Bharat P Dave

Jayanta Das

Boris Stefanov

Jithamithra Sarathy

Ganesh Lakshminarayana

Ronald Simprini

Roman Antosik

Scott Kaminski

Method and apparatus are presented for the generation and detection of maintenance signals in an optical data network. The maintenance signals are such that they can be read both by high bit-rate and low bit-rate receivers. Detection of the maintenance signals occurs in two stages. In a low bit-rate first stage each nodal input port is sampled in a round robin fashion to detect the presence of a maintenance signal. In a high bit-rate second stage the maintenance signal is verified and read by a high speed receiver, along with other high bit-rate information transmitted with it. One second stage high speed receiver is shared among M input channels for cost and circuit efficiency.

Generation and detection of optical maintenance signals in optical networks

Growing community of inventors

Morganville, NJ, United States of America

Kuo-Ming Lee