Publication

Time-and-spatial-multiplexing tree topology for fiber-optic Bragg-grating sensors with interferometric wavelength-shift detection

Bibliographic Details
Summary:	A combined time-and-spatial-division-multiplexed tree topology with eight fiber-optic Bragg-grating sensors operating at the 830-nm wavelength was constructed and tested for both quasistatic and periodic strain and temperature measurements. The system uses a interferometric wavelength-shift discriminator and incorporates a reference channel for thermal drift compensation in the output. Dynamic sensor sensitivity, as determined by primary noise sources, is evaluated, and numerical results are presented and compared with experimental results.
Main Authors:	Lobo Ribeiro, Antonio B.
Other Authors:	Rao, Y. J.; Zhang, L.; Bennion, I.; Jackson, D. A.
Year:	1996
Country:	Portugal
Document type:	article
Access type:	restricted access
Associated institution:	Universidade Fernando Pessoa
Language:	English
Origin:	Repositório Institucional da Fernando Pessoa

Description
Summary:	A combined time-and-spatial-division-multiplexed tree topology with eight fiber-optic Bragg-grating sensors operating at the 830-nm wavelength was constructed and tested for both quasistatic and periodic strain and temperature measurements. The system uses a interferometric wavelength-shift discriminator and incorporates a reference channel for thermal drift compensation in the output. Dynamic sensor sensitivity, as determined by primary noise sources, is evaluated, and numerical results are presented and compared with experimental results.

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