Superimposed Oppositely Chirped FBGs for Ultrafast FBG Sensor Interrogation with Significantly Improved Resolution

Chao Wang; Jianping Yao

doi:10.1364/BGPP.2010.BThB6

Advanced Photonics & Renewable Energy
OSA Technical Digest (CD) (Optica Publishing Group, 2010),
paper BThB6
•https://doi.org/10.1364/BGPP.2010.BThB6

Superimposed Oppositely Chirped FBGs for Ultrafast FBG Sensor Interrogation with Significantly Improved Resolution

Chao Wang and Jianping Yao

Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides 2010

Karlsruhe Germany
21–24 June 2010
ISBN: 978-1-55752-896-4

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Sensor and Signal Processing Applications (BThB)

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C. Wang and J. Yao, "Superimposed Oppositely Chirped FBGs for Ultrafast FBG Sensor Interrogation with Significantly Improved Resolution," in Advanced Photonics & Renewable Energy, OSA Technical Digest (CD) (Optica Publishing Group, 2010), paper BThB6.

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Abstract

A temporal-spectroscopy-based ultrafast FBG sensor interrogation system using two superimposed oppositely chirped FBGs is proposed. Compared with conventional temporal-spectroscopy-based FBG sensor interrogation systems, an improvement in interrogation resolution of two orders of magnitude is achievable.

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