Citation:
Richard 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.
Abstract:
The 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.
