Fibre optic bandpass filter with subpicometre bandwidth using a fibre grating and two fibre Fabry-Perot filters

1997 ◽  
Vol 33 (23) ◽  
pp. 1970 ◽  
Author(s):  
J. Capmany ◽  
B. Ortega ◽  
D. Pastor
Keyword(s):  
Bandpass Filter ◽  
Fibre Optic ◽  
Fabry Perot

Coherence multiplexing of remote fibre optic fabry-perot sensing system

1988 ◽  
Vol 65 (5) ◽  
pp. 319-321 ◽  
Author(s):  
F. Farahi ◽  
T.P. Newson ◽  
J.D.C. Jones ◽  
D.A. Jackson
Keyword(s):  
Fibre Optic ◽  
Sensing System ◽  
Fabry Perot ◽  
Coherence Multiplexing

Underwater pressure measurement using fibre optic extrinsic Fabry-Perot interferometric (EFPI) sensors

2014 ◽  
Author(s):  
Dinesh Babu Duraibabu ◽  
Sven Poeggel ◽  
Elfed Lewis ◽  
Thomas Newe
Keyword(s):  
Pressure Measurement ◽  
Fibre Optic ◽  
Fabry Perot

The Spectrum of a Bent Fiber Fabry-Perot Interferometer under Small Variations of the Refractive Index of the Environment

2013 ◽  
Vol 677 ◽  
pp. 363-367
Author(s):  
Yuri N. Kulchin ◽  
Oleg B. Vitrik ◽  
Stanislav O. Gurbatov
Keyword(s):  
Refractive Index ◽  
Optical Fibre ◽  
Ambient Medium ◽  
Fibre Optic ◽  
Core Mode ◽  
Wide Range ◽  
Fabry Perot ◽  
Resonance Coupling ◽  
Refractive Index Sensors

The phase of light propagating through a bent optical fibre is shown to depend on the refractive index of the medium surrounding the fibre cladding when there is resonance coupling between the guided core mode and cladding modes. This shifts the spectral maxima in the bent fibre-optic Fabry–Perot interferometer. The highest phase and spectral sensitivities achieved with this interferometer configuration are 0,71 and 0,077, respectively, and enable changes in the refractive index of the ambient medium down to 5∙10–6 to be detected. This makes the proposed approach potentially attractive for producing highly stable, precision refractive index sensors capable of solving a wide range of liquid refractometry problems.

Embedded micromachined fibre optic Fabry-Perot pressure sensors in aerodynamics applications

2003 ◽  
Author(s):  
M.J. Gander ◽  
W.N. MacPherson ◽  
J.S. Barton ◽  
R.L. Reuben ◽  
J.D.C. Jones ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
Fibre Optic ◽  
Fabry Perot
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