A Bragg grating based fibre optic reference beam laser Doppler anemometer

Authors
Byrne, GD James, SW Tatam, RP
Citation
Gd. Byrne et al., A Bragg grating based fibre optic reference beam laser Doppler anemometer, MEAS SCI T, 12(7), 2001, pp. 909-913
Citations number
26
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
MEASUREMENT SCIENCE & TECHNOLOGY
ISSN journal
09570233 → ACNP
Volume
12
Issue
7
Year of publication
2001
Pages
909 - 913
Database
ISI
SICI code
0957-0233(200107)12:7<909:ABGBFO>2.0.ZU;2-M
Abstract
An in-line single mode optical fibre reference beam laser Doppler anemomete r that utilizes the reflectivity of a Bragg grating as the source of the re ference beam has been demonstrated. Tuning the emission wavelength of a las er diode across the bandwidth of a fibre Bragg grating (FBG) provides contr ol of the amount of power in the reference beam, and thus a means for optim izing the signal to noise ratio.