Share Email Print
cover

Proceedings Paper

MZI-based wavelength-shift detection system with tunable-FBG
Author(s): Zhiguo Zhang; Fugen Su; Min Zhang; Peida Ye
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Proposed and demonstrated in this letter is a scheme of fiber Bragg grating (FBG) sensor interrogation system based on all fiber Mach-Zehnder Interferometer (MZI) edge filter and tunable-FBG, of which the Bragg period is tunable through a one-dimensional adjustor. Wavelengths message of FBG sensor and the tunable-FBG are transformed into powers message by a pair of the filtering edges of the filter, respectively; and the wavelength difference between the FBG sensor and the tunable-FBG can be obtained through differing the two pairs powers message. In measured experiments, the results show that the precision of the proposed system is 0.02nm in a range of 1nm. The wavelength measurement range can be improved by adjusting the length difference of the two interference arms of the filter.

Paper Details

Date Published: 4 October 2006
PDF: 6 pages
Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 635134 (4 October 2006); doi: 10.1117/12.685304
Show Author Affiliations
Zhiguo Zhang, Beijing Univ. of Posts and Telecommunications (China)
Fugen Su, Beijing Univ. of Posts and Telecommunications (China)
Min Zhang, Beijing Univ. of Posts and Telecommunications (China)
Peida Ye, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 6351:
Passive Components and Fiber-based Devices III
Sang Bae Lee; Yan Sun; Kun Qiu; Simon C. Fleming; Ian H. White, Editor(s)

© SPIE. Terms of Use
Back to Top