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All-Fiber DBR-Based Sensor Interrogation System for Measuring Acoustic Waves
Author(s) -
Maria I. Comanici,
Lv Zhang,
Lawrence R. Chen,
Xijia Gu,
Lutang Wang,
Peter Küng
Publication year - 2012
Publication title -
journal of sensors
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.399
H-Index - 43
eISSN - 1687-7268
pISSN - 1687-725X
DOI - 10.1155/2012/862078
Subject(s) - fiber bragg grating , fiber optic sensor , optics , materials science , multiplexing , wavelength , crosstalk , laser , distributed bragg reflector , optical fiber , phosfos , polarization maintaining optical fiber , optoelectronics , computer science , physics , telecommunications
We investigate the use of all-fiber distributed Bragg reflector (DBR) lasers for fiber optic sensing. We measure the steady-state strain response and show that it is very similar to that for a simple fiber Bragg grating (FBG). The lasers can be wavelength multiplexed and support multisensor operation without crosstalk. We also verify the principle of wavelength-to-power mapping, which can simplify sensor interrogation. Finally, we demonstrate that all-fiber DBR lasers can be used to detect acoustic waves

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