The PGC demodulation of fiber optic interferometer utilizing unstable multimode DBR fiber laser

Lina Ma; Hong Luo; Ming Ni; Yongming Hu

doi:10.1117/12.748078

17 January 2008 The PGC demodulation of fiber optic interferometer utilizing unstable multimode DBR fiber laser

Lina Ma, Hong Luo, Ming Ni, Yongming Hu

Proceedings Volume 6830, Advanced Sensor Systems and Applications III; 68300R (2008) https://doi.org/10.1117/12.748078
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

Lina Ma, Hong Luo, Ming Ni, and Yongming Hu "The PGC demodulation of fiber optic interferometer utilizing unstable multimode DBR fiber laser", Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68300R (17 January 2008); https://doi.org/10.1117/12.748078

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