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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 29, Iss. 5 — Mar. 1, 2011
  • pp: 750–755

Characterization of a Linearly Chirped FBG Under Local Temperature Variations for Spectral Shaping Applications

Mohammad Abtahi, Alexandre D. Simard, Serge Doucet, Sophie LaRochelle, and Leslie A. Rusch

Journal of Lightwave Technology, Vol. 29, Issue 5, pp. 750-755 (2011)


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Abstract

We develop and experimentally validate a method to characterize linearly chirped fiber Bragg gratings (CFBGs) under local temperature perturbations for tunable spectral shaping. The heat distribution along the FBG is modeled by a Gaussian–Lorentzian function. The phase and apodization profiles of the CFBG are characterized by measuring the complex reflection spectrum and subsequently using inverse scattering. Finally, coupled mode theory is used to predict the transmittivity of the CFBG under the local temperature perturbations. As an application, we use our model to spectrally shape the spectrum of a gain-switched laser (GSL) and generate ultra-short, optimally designed pulses for high speed wireless data distribution in indoor environments.

© 2011 IEEE

Citation
Mohammad Abtahi, Alexandre D. Simard, Serge Doucet, Sophie LaRochelle, and Leslie A. Rusch, "Characterization of a Linearly Chirped FBG Under Local Temperature Variations for Spectral Shaping Applications," J. Lightwave Technol. 29, 750-755 (2011)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-29-5-750

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