Dynamic fiber bragg grating interrogation system and method

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United States of America Patent

PATENT NO 9297691
APP PUB NO 20140131562A1
SERIAL NO

14076502

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Abstract

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A fiber Bragg grating (FBG) interrogation method allows for high frequency dynamic measurement. The method may utilize a broad band light source connected to the sensing elements. Each sensing element may comprise two wavelength matching FBGs, a coupler, and a photodiode. The FBG closest to the light source may attenuate the central wavelength in the transmission spectrum and thus the reflection spectrum of the second FBG. Variations in intensity of the second FBG may be measured by the photodiode and can be calibrated to the desired measurands.

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Patent Owner(s)

  • UNIVERSITY OF HOUSTON

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ho, Siu Chun Michael Sugar Land, US 8 24
Li, Hongnan Dailan, CN 33 20
Liang, Ren Dailan, CN 2 8
Song, Gangbing Pearland, US 30 337

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