Line-neutral fiber optic sensing, combining time-division and frequency-division multiplexing techniques

Marc R. H. Voet; Alain R. F. Barel

doi:10.1117/12.20308

1 August 1990 Line-neutral fiber optic sensing, combining time-division and frequency-division multiplexing techniques

Marc R. H. Voet, Alain R. F. Barel

Proceedings Volume 1267, Fiber Optic Sensors IV; (1990) https://doi.org/10.1117/12.20308
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

Intensity modulation, induced by a modified microbending pressure sensor is considered as a possible transduction mechanism for detecting environmental changes. Implementations of these kind of sensors into multiple sensor systems is based on simple and reliable technology with multimode fiber, couplers, a reference and a multiplexing technique. A frequency domain technique is presented to interrogate unambiguously time division multiplexed sensors. Line neutrality is obtained by a referencing method. Torsion experiments with multimode fibers in a microbend pressure transducer application, to improve the sensor attenuation, are reported.

Citation Download Citation

Marc R. H. Voet and Alain R. F. Barel "Line-neutral fiber optic sensing, combining time-division and frequency-division multiplexing techniques", Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); https://doi.org/10.1117/12.20308

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