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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 31, Iss. 13 — Jul. 1, 2013
  • pp: 2223–2229

Phase Retrieval From Transmission Spectrum for Long-Period Fiber Gratings

Bing Zou and Kin Seng Chiang

Journal of Lightwave Technology, Vol. 31, Issue 13, pp. 2223-2229 (2013)


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Abstract

We demonstrate a method to retrieve the phase spectrum of a long-period fiber grating (LPFG) from its transmission spectrum. The method is based on the Hilbert transform that relates the minimum phase and the amplitude spectrum of a linear system, and is applicable to under-coupled LPFGs with arbitrary grating profiles. We verify the method with numerical examples and experiments. The method provides a simple and effective way to obtain the phase characteristics of LPFGs and thus complement the measured transmission spectra of the gratings.

© 2013 IEEE

Citation
Bing Zou and Kin Seng Chiang, "Phase Retrieval From Transmission Spectrum for Long-Period Fiber Gratings," J. Lightwave Technol. 31, 2223-2229 (2013)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-31-13-2223

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