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Updated: Jun 20, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Single-shot real-time frequency chirp characterization of telecommunication optical signals based on balanced
Fangxing Li1, Yongwoo Park, José Azaña
1Institut National de la Recherche Scientifique (INRS), Centre Energie, Matériaux et Télécommunications, Varennes,Québec J3X 1S2, Canada. fangxin@emt.inrs.ca
Abstract:
A simple single-shot frequency chirp characterization technique for telecommunication optical waveforms is introduced. The proposed technique is based on what we believe to be a novel balanced all-optical ultrafast differentiation scheme, and it enables a real-time conversion of the instantaneous frequency variation of an arbitrary complex (amplitude and phase) optical signal into a temporal intensity profile while simultaneously providing an efficient cancellation of the intensity noise. Single-shot real-time frequency chirp measurements of gigahertz-bandwidth phase-only and amplitude and phase temporal modulation waveforms are performed.
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