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Proceedings Paper

The characterization of the double fiber Bragg grating fiber ring laser and its applications in a real time fiber sensing system
Author(s): C. L. Ko; C. Y. Yang; K. R. Huang; Ming Chang Shih
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Paper Abstract

We demonstrate a fiber sensing system by using a fiber resonator which is formed by two fiber Bragg gratings. It is able to measure real time strain and stress directly by the variation of the intensity of the output power due to the modulation in the fiber resonator. It shows that recording of the strain variation can be achieved as high as 2K Hz. The frequency response, signal noise ratio, and maximum range of the sensing system are studied with various reflectivity of the FBG, and the coupling ratios of the couplers used in the system.

Paper Details

Date Published: 3 October 2008
PDF: 8 pages
Proc. SPIE 7155, Ninth International Symposium on Laser Metrology, 71551M (3 October 2008); doi: 10.1117/12.814559
Show Author Affiliations
C. L. Ko, National Univ. of Kaohsiung (Taiwan)
C. Y. Yang, National Univ. of Kaohsiung (Taiwan)
K. R. Huang, National Univ. of Kaohsiung (Taiwan)
Ming Chang Shih, National Univ. of Kaohsiung (Taiwan)

Published in SPIE Proceedings Vol. 7155:
Ninth International Symposium on Laser Metrology
Chenggen Quan; Anand Asundi, Editor(s)

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