Murphy, Richard P.James, Stephen W.Tatam, Ralph P.Antonello, CutoloBrian, CulshawJos, Miguel Lpez-Higuera2012-07-192012-07-192007-12-31Richard P. Murphy, Stephen W. James and Ralph P. Tatam. Nested long period grating interferometers. Proceedings of SPIE Third European Workshop on Optical Fibre Sensors, Wednesday 04 July 2007, Napoli, Italy. Volume 6619, 66193G. Eds. Antonello Cutolo, Brian Culshaw, Jose Miguel Lopez-Higuera.978-0-8194-6761-40277-786Xhttp://dx.doi.org/10.1117/12.738589http://dspace.lib.cranfield.ac.uk/handle/1826/7399The concept of nested fibre optic long period grating (LPG) based interferometers is introduced. A number of in-series, identical LPGs may be used to form a set of nested, multiplexed Mach-Zehnder interferometers that may demodulated and demultiplexed by virtue of a Fourier analysis of the optical spectrum. The concept is demonstrated by the use of three LPGs to form a nested set of interferometers.optical fibre long period gratingnested interferometerConference paper