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Swelling clad-type plastic optical fiber alkane sensor with multi-layer cladding using electrospray deposition method
Author(s): Akira Nakamura; Yutaka Suzuki; Masayuki Morisawa
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Paper Abstract

In this study, we develop a plastic optical fiber (POF) sensor with a double-layer structure cladding consisting of a swelling polymer lower layer and a dye-doped swelling polymer upper layer. Both cladding layers swell and decrease their refractive indices when exposed to alkane vapor. Then, the structure of the POF sensor changes from leaky to waveguide mode. Therefore, the intensity of transmitted light changes remarkably, depending on the presence of alkane. The absorption of light due to the dye in the upper cladding layer increases the change in transmitted light intensity. In this study, we fabricated a POF sensor by using the electrospray deposition method and examined its response to alkane vapor. The results indicate an improvement in the sensitivity of the POF alkane sensor due to the effect of the double-clad layer.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032329 (23 April 2017); doi: 10.1117/12.2263258
Show Author Affiliations
Akira Nakamura, Univ. of Yamanashi (Japan)
Yutaka Suzuki, Univ. of Yamanashi (Japan)
Masayuki Morisawa, Univ. of Yamanashi (Japan)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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