Simultaneous single-shot real-time measurement of the instantaneous frequency and phase profiles of wavelength-division-multiplexed signals.
A self-reference, single-shot characterization technique is proposed and demonstrated for simultaneously measuring the instantaneous frequencies and phases of multi-wavelength optical signals using a single processing and detection platform. The technique enables direct real-time optical sampling of the instantaneous frequencies of amplitude and/or phase modulated signals simultaneously at different wavelengths without requiring the use of any optical reference. Simultaneous real-time instantaneous frequency and phase measurements of a chirped 1 GHz-sinusoid intensity modulation signal and a 3 Gbps-PRBS (pseudo-random binary sequence) phase-modulated signal at two different wavelength channels have been performed for the proof-of-concept demonstration.
Park
Yongwoo
Y
Institut National de la Recherche Scientifique - Energie, Matériaux et Télécommunications (INRS-EMT)Varennes, Québec, J3X 1S2 Canada. park@emt.inrs.ca
Scaffardi
Mirco
M
Potì
Luca
L
Azaña
José
J
D004867:Equipment Design; D019544:Equipment Failure Analysis; D010783:Photometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*