James, Stephen W.Dockney, Michael L.Tatam, Ralph P.2011-12-152011-12-151996-05-05James, S.W.; Dockney, M.L.; Tatam, R.P.; Photorefractive volume holographic demodulation of in-fiber Bragg grating sensors. IEEE Photonics Technology Letters, IEEE Volume 8, Issue 5, May 1996 Page(s):664 - 6661041-1135http://dspace.lib.cranfield.ac.uk/handle/1826/968A demodulation scheme for an in-fiber Bragg grating sensor using a volume holographic filter formed in photorefractive BaTiO3 is proposed and demonstrated. A strain range of 2500 μstrain, with minimum detectable strain of 4 μstrain/√Hz, is measured. Extension of the technique to allow demodulation of arrays of sensors is discusArticle