23 April 2017 Model-based compressed sensing of fiber Bragg grating arrays in the frequency domain
Author Affiliations +
Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236H (2017) https://doi.org/10.1117/12.2263462
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
We propose a model-based compressed sensing (MBCS) of FBG arrays (FBGA), interrogated with wavelength scanning incoherent optical frequency domain reflectometry. This method measures the frequency response of a FBGA with an electrical vector network analyzer combined with a tunable laser. Instead of the usual inverse discrete Fourier transform (IDFT), we apply a direct estimation of the grating reflectivities with a simple frequency domain model. A reconstruction of 10 gratings spaced by 20 cm is demonstrated. MBCS allows to reduce the number of measurement frequencies from 120 to 8, compared to an IDFT, while using a bandwidth of just 500 MHz.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stefan Werzinger, Stefan Werzinger, Michael Gottinger, Michael Gottinger, Sandra Gussner, Sandra Gussner, Sven Bergdolt, Sven Bergdolt, Rainer Engelbrecht, Rainer Engelbrecht, Bernhard Schmauss, Bernhard Schmauss, } "Model-based compressed sensing of fiber Bragg grating arrays in the frequency domain", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236H (23 April 2017); doi: 10.1117/12.2263462; https://doi.org/10.1117/12.2263462
PROCEEDINGS
4 PAGES


SHARE
Back to Top