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IEICE TRANSACTIONS on Communications

Novel Fiber-Optic Distributed Strain and Temperature Sensor with Very High Resolution

Yahei KOYAMADA, Yousuke EDA, Souichi HIROSE, Shinki NAKAMURA, Kazuo HOGARI

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Summary :

A novel technique is proposed for measuring the distributed strain and temperature in a fiber with a very high resolution. This technique makes use of the jagged appearance of Rayleigh backscatter traces from a single-mode fiber measured by using a coherent OTDR with a precisely frequency-controlled light source. Our preliminary experiment indicated the possibility of measuring temperature with a resolution of better than 0.01 and a spatial resolution of one meter. This temperature resolution is two orders of magnitude better than that provided by Brillouin-based distributed sensors.

Publication
IEICE TRANSACTIONS on Communications Vol.E89-B No.5 pp.1722-1725
Publication Date
2006/05/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e89-b.5.1722
Type of Manuscript
LETTER
Category
Sensing

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