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Proceedings Paper

Optical fiber sensor with phase-shifted long-period fiber gratings
Author(s): Mei Kong; Wen Zhou; Weizhong Tang
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Paper Abstract

We point out that a long-period fiber grating with (pi) phase shift at the center has a transmission window in the center of the stopband. Basing on the transfer matrix treatment we calculate the output spectra of the phase-shifted long period fiber gratings. When the grating total sustains temperature or strain variation, the bright peak will move with the absorbing band and its wavelength shift can be detected to show the variation. The transmission window is a bright signal and easy to be detected.

Paper Details

Date Published: 13 August 1998
PDF: 5 pages
Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318188
Show Author Affiliations
Mei Kong, Zhejiang Univ. (China)
Wen Zhou, Zhejiang Univ. (China)
Weizhong Tang, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 3555:
Optical and Fiber Optic Sensor Systems
Shanglian Huang; Kim D. Bennett; David A. Jackson, Editor(s)

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