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Proceedings Paper

Optical frequency domain reflectometry damage sensor based on a laser diode sweep generator for smart structures and skins
Author(s): Igor G. Goncharov; Alexander P. Grachev; Oleg V. Kazharsky; Alexander K. Matveev; Yury A. Mironov
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Paper Abstract

The paper discusses an application of the optical frequency-domain reflectometry method for damage and stress fiber sensors embedded in composites. Proposed sensor is based on an optical sweep generator with an external cavity laser diode. This diode provides a single frequency CW generation with 0.85-micron wavelength and maximum sweep rate up to 10,000 GHz/s. Under those conditions one can reach the optical frequency shift of 100 kHz/m in fiber. The spatial resolution of 10 cm in 100-m embedded fiber while determining a position of a damage was obtained.

Paper Details

Date Published: 7 February 1994
PDF: 6 pages
Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); doi: 10.1117/12.166864
Show Author Affiliations
Igor G. Goncharov, Moscow Engineering Physics Institute (Russia)
Alexander P. Grachev, Moscow Engineering Physics Institute (Russia)
Oleg V. Kazharsky, Moscow Engineering Physics Institute (Russia)
Alexander K. Matveev, Moscow Engineering Physics Institute (Russia)
Yury A. Mironov, Moscow Engineering Physics Institute (Russia)

Published in SPIE Proceedings Vol. 2072:
Fiber Optic Physical Sensors in Manufacturing and Transportation
John W. Berthold; Richard O. Claus; Michael A. Marcus; Robert S. Rogowski, Editor(s)

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