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Proceedings Paper

Multimode interference in tapered single mode-multimode-single mode fiber structures for strain sensing applications
Author(s): Ricardo M. André; Claudecir R. Biazoli; Susana O. Silva; Manuel B. Marques; Cristiano M. B. Cordeiro; Orlando Frazão
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Paper Abstract

Tapering single mode-multimode-single mode structures to enhance sensitivity is proposed and experimentally demonstrated. 50 mm-long coreless MMF sections are spliced between SMFs and tapered. They are characterized in strain and an increase in strain sensitivity is obtained with taper diameter reduction. Sensitivities as high as -23.69 pm/με for the 15 μm taper are attained. A combination of an untapered and tapered SMS is proposed as a sensing system for the simultaneous measurement of strain and temperature.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84213B (17 October 2012); doi: 10.1117/12.975167
Show Author Affiliations
Ricardo M. André, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Claudecir R. Biazoli, Univ. Estadual de Campinas (Brazil)
Susana O. Silva, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Manuel B. Marques, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Cristiano M. B. Cordeiro, Univ. Estadual de Campinas (Brazil)
Orlando Frazão, INESC Porto (Portugal)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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