Title :
Fibre-optic interferometric sensor utilising low coherence length source: resolution enhancement
Author :
Gerges, A.S. ; Farahi, F. ; Newson, T.P. ; Jones, J.D.C. ; Jackson, D.A.
Author_Institution :
Phys. Lab., Kent Univ., Canterbury
fDate :
4/14/1988 12:00:00 AM
Abstract :
A fibre-optic interferometric sensor is described based on a low-coherence source. A novel form of homodyne signal processing is used in which the interferometer is locked to the quadrature point nearest to maximum visibility. This technique avoids the ambiguities which arise from the use of a high-coherence source in interferometers, where the transfer function is periodic
Keywords :
fibre optic sensors; light interferometers; ambiguities elimination; coherence length 50 μm; fibre-optic interferometric sensor; homodyne signal processing; low coherence length source; low-coherence source; quadrature point nearest to maximum visibility; resolution enhancement;
Journal_Title :
Electronics Letters
