scholarly journals Interrogation of fibre-optic interferometric sensors using acousto-optic tunable filter

1995 ◽  
Vol 31 (17) ◽  
pp. 1487-1488 ◽  
Author(s):  
M.G. Xu ◽  
H. Geiger ◽  
J.P. Dakin
Keyword(s):  
Tunable Filter ◽  
Fibre Optic ◽  
Interferometric Sensors

Active wavelength demodulation of Bragg fibre-optic strain sensor using acousto-optic tunable filter

1995 ◽  
Vol 31 (18) ◽  
pp. 1602-1603 ◽  
Author(s):  
T. Coroy ◽  
R.M. Measures ◽  
J.H. Belk ◽  
P.J. Ellerbrock
Keyword(s):  
Strain Sensor ◽  
Tunable Filter ◽  
Fibre Optic

Simultaneous measurement of temperature and strain using fibre optic interferometric sensors

1990 ◽  
Author(s):  
Faramarz Farahi ◽  
David J. Webb ◽  
Julian D. C. Jones ◽  
David A. Jackson
Keyword(s):  
Simultaneous Measurement ◽  
Fibre Optic ◽  
Interferometric Sensors

scholarly journals Low-Coherence Fibre-Optic Interferometric Sensors

2011 ◽  
Vol 120 (4) ◽  
pp. 621-624 ◽  
Author(s):  
M. Jedrzejewska-Szczerska ◽  
M. Gnyba ◽  
B.B. Kosmowski
Keyword(s):  
Fibre Optic ◽  
Low Coherence ◽  
Interferometric Sensors

scholarly journals A low-cost portable fibre-optic spectrometer for atmospheric absorption studies

2013 ◽  
Vol 6 (1) ◽  
pp. 1067-1092 ◽  
Author(s):  
J. Bailey
Keyword(s):  
Signal To Noise Ratio ◽  
Tracking System ◽  
Low Cost ◽  
Single Mode ◽  
Tunable Filter ◽  
Fibre Optic ◽  
Solar Absorption ◽  
Solar Tracking ◽  
Fabry Perot ◽  
Absorption Studies

Abstract. A compact and portable solar absorption spectrometer based on fibre-optic Fabry–Perot technology has been built and tested. The instrument weighs only 4.2 kg and operates from 5 W of power from internal batteries. It provides spectroscopy over the range from 5980–6580 cm−1 (1.52–1.67 μm) at a resolution of 0.16 cm−1. The input to the spectrometer is via single-mode optical fibre from a solar tracking system. Spectral scanning is carried out with a piezoelectrically scanned fibre Fabry–Perot tunable filter. Software has been developed to calibrate the spectra in wavelength and relative flux. The signal to noise ratio in solar spectra is about 700 for a spectrum scanned at 200 milliseconds per spectral point. The techniques used should be capable of being adapted to a range of wavelengths and to higher or lower resolutions.

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