OPTICAL SUPERVISORY CHANNEL FOR HIGH SPAN LOSS OPTICAL COMMUNICATION SYSTEMS

OPTICAL SUPERVISORY CHANNEL FOR HIGH SPAN LOSS OPTICAL COMMUNICATION SYSTEMS

An optical supervisory channel includes a transmit path that propagates optical supervisory signals to a high span loss optical fiber span having an optical loss that is greater than 35 dB. A wavelength division multiplexer adds the optical supervisory signals to the high span loss optical fiber spa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZYSKIND, JOHN, AKBABA, ENIS, ROBINSON, ANDREW, NIALL, PARK, SEO, YEON, JACOB, JOHN, THOEN, ERIK, ROBERT
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Beschreibung
Zusammenfassung:An optical supervisory channel includes a transmit path that propagates optical supervisory signals to a high span loss optical fiber span having an optical loss that is greater than 35 dB. A wavelength division multiplexer adds the optical supervisory signals to the high span loss optical fiber span. A second wavelength division multiplexer extracts the optical supervisory signals from the high span loss optical fiber span. A receive path propagates the optical supervisory signals away from the high span loss optical fiber span. The optical supervisory channel also includes a means for reducing a bit error rate of the optical supervisory channel.