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Updated: Jul 11, 2026
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
Experimental reconstruction of a highly reflecting fiber Bragg grating by using spectral regularization and inverse
Amir Rosenthal1, Moshe Horowitz, Sven Kieckbusch
1Department of Electrical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel. eeamir@tx.technion.ac.il
Abstract:
We demonstrate experimentally, for the first time to our knowledge, a reconstruction of a highly reflecting fiber Bragg grating from its complex reflection spectrum by using a regularization algorithm. The regularization method is based on correcting the measured reflection spectrum at the Bragg zone frequencies and enables the reconstruction of the grating profile using the integral-layer-peeling algorithm. A grating with an approximately uniform profile and with a maximum reflectivity of 99.98% was accurately reconstructed by measuring only its complex reflection spectrum.
