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Micro-drilled optical fiber for enhanced laser strain sensors

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.

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Authorship: Pérez Herrera R., Bravo Acha M., Roldan-Varona P., Leandro D., Rodriguez Cobo L., Lopez-Higuera J., Lopez-Amo M.,

Congress: European Workshop on Optical Fibre Sensors (7º : 2019, Limassol, Chipre)

Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

Publication date: 28/08/2019

No. of pages: 4

Publication type: Conference object

DOI: 10.1117/12.2539802

ISSN: 0277-786X,1996-756X

Spanish project: TEC2016-76021-C2

Publication Url: https://doi.org/10.1117/12.2539802

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Authorship

ROSA ANA PEREZ HERRERA

BRAVO ACHA, MIKEL

PABLO ROLDAN VARONA

LEANDRO GONZÁLEZ, DANIEL

LUIS RODRIGUEZ COBO

JOSE MIGUEL LOPEZ HIGUERA

MANUEL LOPEZ-AMO SAINZ

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