Micro-drilled optical fiber for enhanced laser strain sensors

Pérez Herrera, Rosa Ana; Bravo Acha, Mikel; Roldán Varona, Pablo; Leandro González, Daniel; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sainz, Manuel

doi:10.1117/12.2539802

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Identificadores

URI: http://hdl.handle.net/10902/18304

DOI: 10.1117/12.2539802

ISSN: 0277-786X

ISSN: 1996-756X

Fecha

2019-08-28

Derechos

© 2019 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Publicado en

Proceedings of SPIE, 2019, 11199, 111992R

Seventh European Workshop on Optical Fibre Sensors (EWOFS 2019), Limassol, Chipre, 2019

Editorial

SPIE Society of Photo-Optical Instrumentation Engineers

Enlace a la publicación

https://doi.org/10.1117/12.2539802

Palabras clave

Fiber Bragg grating

Fiber cavity laser

Micro-drilled optical fiber

Optical fiber sensor

Resumen/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.