Optical wavelength monitoring and control system

Optical wavelength monitoring and control system

The system has a portion comprising a heterodyne balanced detector (30) having a real-time externally calibrated tunable laser source for use as a local oscillator to produce a periodic wavelength reference. The balanced detector cancels an intensity modulation of an input signal (26). Another porti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG, HONGBIN, JANDER, R. BRIAN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
COLORIMETRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MULTIPLEX COMMUNICATION
PHYSICS
RADIATION PYROMETRY
TESTING
TRANSMISSION
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Beschreibung
Zusammenfassung:The system has a portion comprising a heterodyne balanced detector (30) having a real-time externally calibrated tunable laser source for use as a local oscillator to produce a periodic wavelength reference. The balanced detector cancels an intensity modulation of an input signal (26). Another portion cooperates with the portion for real-time wavelength calibration of an optical data signal. An independent claim is also included for a method for measuring and adjusting a wavelength in an optical telecommunication system.