17 January 2008 The PGC demodulation of fiber optic interferometer utilizing unstable multimode DBR fiber laser
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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.
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Lina Ma, Lina Ma, Hong Luo, Hong Luo, Ming Ni, Ming Ni, Yongming Hu, 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); doi: 10.1117/12.748078; https://doi.org/10.1117/12.748078
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