(57) ABSTRACT A transmitter can include a laser operable to output an optical signal; a
digital signal processor operable to receive user data and provide electrical signals based …

A densely-spaced wavelength division multiplexing (DWDM) transceiver utilizes a comb
laser source to provide a multi-channel system capable of supporting at least twenty …

An optical receiver includes, a first converting circuit that converts an optical signal into an
electric signal, a plurality of common circuits, each of which has a same circuit configuration …

A transmitter can include a laser operable to output an optical signal; a digital signal
processor operable to receive user data and provide electrical signals based on the data; …

(57) ABSTRACT A transmission device includes a processor configured to: extract data
other than an idle signal from an input signal, generate a first frame in which the extracted …