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Proceedings Paper

The PGC demodulation of fiber optic interferometer utilizing unstable multimode DBR fiber laser
Author(s): Lina Ma; Hong Luo; Ming Ni; Yongming Hu
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Paper Abstract

This paper presents a PGC interrogation scheme when a three-mode DBR fiber laser is used for fiber optic interferometer. By carefully adjusting the path difference of interferometer, ▵L, a stable interferential signal can be generated when ▵L is 2g times of DBR resonator length, where g is an integer. When acoustic signal acts on the interferometer, the PGC demodulation result is in consistent with that obtained with a single mode, high coherent fiber laser.

Paper Details

Date Published: 17 January 2008
PDF: 9 pages
Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68300R (17 January 2008); doi: 10.1117/12.748078
Show Author Affiliations
Lina Ma, National Univ. of Defense Technology (China)
Hong Luo, National Univ. of Defense Technology (China)
Ming Ni, National Univ. of Defense Technology (China)
Yongming Hu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 6830:
Advanced Sensor Systems and Applications III
Yun-Jiang Rao; Yanbiao Liao; Gang-Ding Peng, Editor(s)

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