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Opt Lett. 2009 Sep 15;34(18):2742-4. doi: 10.1364/OL.34.002742.

Single-shot real-time frequency chirp characterization of telecommunication optical signals based on balanced temporal optical differentiation.

Author information

  • 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.

PMID:
19756090
[PubMed]
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