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.© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.