Method and apparatus for demodulating and regenerating phase modulated optical signals

A DPSK/DQPSK receiver includes an optical splitter that separates the received DPSK/DQPSK optical signal according to an optical power splitting ratio into a plurality of received optical signals. A plurality of optical filters passes a plurality of filtered received optical signals. A plurality of...

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Bibliographische Detailangaben
Hauptverfasser: STAV YINNON, EREIFEJ HEIDER, GRANOT ER'EL, TSADKA SAGIE, BEN-EZRA SHALVA
Format: Patent
Sprache:eng
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Zusammenfassung:A DPSK/DQPSK receiver includes an optical splitter that separates the received DPSK/DQPSK optical signal according to an optical power splitting ratio into a plurality of received optical signals. A plurality of optical filters passes a plurality of filtered received optical signals. A plurality of optical detectors generates a plurality of electrical detection signals, each with a power that is related to a power of a respective filtered optical signal. A plurality of amplifiers generates a plurality of amplified electrical signals. At least one electrical signal combiner combines the plurality of amplified electrical detection signals generated by the plurality of optical amplifiers into a combined reception signal.