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Proceedings Paper

Optical fiber humidity sensor using a nano Fabry-Perot cavity formed by electrostatic self-assembly
Author(s): Francisco J. Arregui; Yanjing Liu; Ignacio R. Matias; Richard O. Claus
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Paper Abstract

The electrostatic self-assembly (ESA) process was utilized to fabricate a novel optical fiber humidity sensor based on a nano interferometric cavity. A wide operation range, from 11.3% to 100% relative humidity with a maximum variation of 4.77 dB, was experimentally demonstrated. Due to the short length of the interferometric cavity, less than 400 nm, an LED was used as the light source instead of a laser. The fast response time of this humidity sensor, less than 1.5 seconds, makes it possible to monitor human breathing.

Paper Details

Date Published: 12 June 2000
PDF: 8 pages
Proc. SPIE 3986, Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (12 June 2000); doi: 10.1117/12.388127
Show Author Affiliations
Francisco J. Arregui, Univ. Publica de Navarra (Spain)
Yanjing Liu, Virginia Polytechnic Institute and State Univ. (United States)
Ignacio R. Matias, Univ. Publica de Navarra (Spain)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 3986:
Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Richard O. Claus; William B. Spillman, Editor(s)

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