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Proceedings Paper

Ultracompact optical fiber Fabry-Perot interferometer based on in-line integrated sub-micron silicon film
Author(s): A. Micco; G. Quero; A. Crescitelli; A. Ricciardi; A. Cusano
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Paper Abstract

In this work, an ultra compact in line fiber optic Fabry-Perot interferometer is presented. The interferometric structure consists of a thin (< 1 μm) amorphous silicon layer in line integrated into a standard single mode optical fiber by means of an electric arc discharge technique. The device exhibits low loss (1.46 dB) and high interference fringe visibility (~ 30% in linear scale) both in reflection and transmission due to the high refractive index contrast between silica and α-Si. A high linear temperature sensitivity up to 75 pm/°C is demonstrated in the range 15-52 °C. The proposed device is simple, compact, cost effective and attractive for point monitoring sensing application in ultra-high temperature sensing in harsh environments.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87940P (20 May 2013); doi: 10.1117/12.2025866
Show Author Affiliations
A. Micco, Univ. of Sannio (Italy)
G. Quero, Univ. of Sannio (Italy)
A. Crescitelli, Univ. of Sannio (Italy)
A. Ricciardi, Univ. of Sannio (Italy)
A. Cusano, Univ. of Sannio (Italy)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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