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Micro-drilled optical fiber for enhanced laser strain sensors
Author(s): R. A. Pérez Herrera; M. Bravo Acha; Pablo Roldan-Varona; D. Leandro; L. Rodriguez Cobo; J. M. Lopez-Higuera; M. Lopez-Amo
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Paper Abstract

In this work, we present an experimental measurement of temperature and strain sensitivities of a micro-drilled optical fiber (MDOF). The MDOF consisted of a quasi-randomly distributed reflector along a single mode fiber (SMF). A fiber cavity laser based on MDOF was experimentally studied, attaining a single-wavelength laser emission centered at 1568.6nm. The output power level obtained from this single-laser oscillation when pumped at 140mW was around - 9.6dBm, and an optical signal to noise ratio (OSNR) of around 45dB was measured. Although temperature sensitivities of fiber Bragg gratings used as sensors are similar to our MDOF, strain sensitivity is enhanced around one order of magnitude when the MDOF was used.

Paper Details

Date Published: 28 August 2019
PDF: 4 pages
Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111992R (28 August 2019); doi: 10.1117/12.2539802
Show Author Affiliations
R. A. Pérez Herrera, Univ. Pública de Navarra (Spain)
M. Bravo Acha, Univ. Pública de Navarra (Spain)
Pablo Roldan-Varona, Univ. de Cantabria (Spain)
CIBER-bbn, Instituto de Salud Carlos III (Spain)
D. Leandro, Univ. Pública de Navarra (Spain)
L. Rodriguez Cobo, CIBER-bbn, Instituto de Salud Carlos III (Spain)
J. M. Lopez-Higuera, Univ. de Cantabria (Spain)
CIBER-bbn, Institituo de Salud Carlos III (Spain)
Instituto de Investigación Sanitaria Valdecilla (IDIVAL) (Spain)
M. Lopez-Amo, Univ. Pública de Navarra (Spain)


Published in SPIE Proceedings Vol. 11199:
Seventh European Workshop on Optical Fibre Sensors
Kyriacos Kalli; Sinead O. O'Keeffe; Gilberto Brambilla, Editor(s)

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