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Proceedings Paper

Characteristics of hetero-core spliced fiber optics in simultaneous utilization of humidity sensing and data communications
Author(s): Norihiko Shinomiya; Emiko Kondo; Shohei Akita; Michiko Nishiyama; Hiroyuki Sasaki; Kazuhiro Watanabe
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Paper Abstract

We aim at composing a novel remote monitoring system of the water level and soil humidity under the natural environment with a hetero-core spliced fiber optic chemical sensor inserted into an existing communication line. This paper demonstrates the fusion characteristics of an optical communications and a humidity sensing by means of a hetero-core spliced fiber optic sensor that has been highly-vaunted from the practical perspective. However, this humidity sensor leaks light and attenuates the optical signal power of a communication wavelength by intent on sensing use. From the communications standpoint, this may lead to decrease intensity of optical signals sent to the receiver and increase a bit error. In other words, there may be a trade-off relationship between communications quality and measuring accuracy. We have proved the possibility of the co-existence of communication signals and measuring functions by finding out the effect of humidity sensing on the communications is the optical loss and modal dispersion.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75031H (5 October 2009); doi: 10.1117/12.835052
Show Author Affiliations
Norihiko Shinomiya, SOKA Univ. (Japan)
Emiko Kondo, SOKA Univ. (Japan)
Shohei Akita, SOKA Univ. (Japan)
Michiko Nishiyama, SOKA Univ. (Japan)
Hiroyuki Sasaki, SOKA Univ. (Japan)
Kazuhiro Watanabe, SOKA Univ. (Japan)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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