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Proceedings Paper

Highly sensitive optical modulation realized in multimode optical fibers
Author(s): Xingfa Dong; Haitao Mao; Qingguo Wang; Mingju Huang; Fangzheng Li
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Paper Abstract

Etched optical fiber is made of multimode optical fiber, whose cladding is single-surface etched or double-surface asymmetrically etched. Because the mode-volume mismatch and the lateral bending can cause a reduction of the transmitted light power, it can be used as a sensor to detect stress and strain in the structure of material. Throughout our experiments, two kinds of fiber are used. It is shown by the static response testing that the power loss increases linearly with the change of strain. In experiments of dynamic response, the maximum frequency of distortionless optical modulation can get up to 21 kHz. This simple method of optical modulation is useful in research of sensor and spatial light modulation.

Paper Details

Date Published: 13 August 1998
PDF: 5 pages
Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318164
Show Author Affiliations
Xingfa Dong, Henan Univ. (China)
Haitao Mao, Henan Univ. (China)
Qingguo Wang, Henan Univ. (China)
Mingju Huang, Henan Univ. (China)
Fangzheng Li, Henan Univ. (China)


Published in SPIE Proceedings Vol. 3555:
Optical and Fiber Optic Sensor Systems
Shanglian Huang; Kim D. Bennett; David A. Jackson, Editor(s)

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