1 September 1999 Dense wavelength-division demultiplexing of interferometrically interrogated fiber Bragg grating sensors
Author Affiliations +
Proceedings Volume 3746, 13th International Conference on Optical Fiber Sensors; 37463O (1999) https://doi.org/10.1117/12.2302122
Event: 13th International Conference on Optical Fiber Sensors, 1999, Kyongju, Korea, Republic of
Abstract
We report accurate demultiplexing of fiber Bragg grating sensors with reflection wavelengths separated by less than 2 nm using a method based on Hilbert transforms of interferograms. Demultiplexing ofthree gratings with less than 4 pm crosstalk and repeatability, and 19 pm uncertainty was demonstrated. We anticipate that a large number of gratings can be multiplexed with a single broadband source and a single receiving interferometer, provided that the interferogram is sampled with accurate intervals close to the Nyquist rate.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. B. Rochford, K. B. Rochford, } "Dense wavelength-division demultiplexing of interferometrically interrogated fiber Bragg grating sensors", Proc. SPIE 3746, 13th International Conference on Optical Fiber Sensors, 37463O (1 September 1999); doi: 10.1117/12.2302122; https://doi.org/10.1117/12.2302122
PROCEEDINGS
4 PAGES


SHARE
Back to Top