Fiber Bragg grating anemometer with reduced pump power-dependency

Lok Hin Cho; Chao Lu; Aping Zhang; Hwa Yaw Tam

doi:10.1109/LPT.2013.2288115

Fiber Bragg grating anemometer with reduced pump power-dependency

Lok Hin Cho, Chao Lu, Aping Zhang, Hwa Yaw Tam

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

We propose a novel scheme to reduce the sensitivity to pump power variation in optical fiber anemometers that used fiber Bragg grating (FBG) inscribed in light absorption optical fibers. By modulating the output power of the pump laser and by measuring the time constant of the wavelength change of the FBG sensor, we theoretically and experimentally demonstrated that significant reduction of the sensitivity of flow measurement to pump power can be achieved.

Original language	English
Article number	6651749
Pages (from-to)	2450-2453
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	25
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2013.2288115
Publication status	Published - 15 Dec 2013

Keywords

anemometer
fiber Bragg gratings
Fluid flow measurement
optical fiber sensors

ASJC Scopus subject areas

Electrical and Electronic Engineering
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials

More information

10.1109/LPT.2013.2288115

Cite this

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KW - optical fiber sensors

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Fiber Bragg grating anemometer with reduced pump power-dependency

Abstract

Keywords

ASJC Scopus subject areas

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