Experimental reconstruction of a highly reflecting fiber Bragg grating by using spectral regularization and inverse scattering.
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.
Rosenthal
Amir
A
Department of Electrical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel. eeamir@tx.technion.ac.il
Horowitz
Moshe
M
Kieckbusch
Sven
S
Brinkmeyer
Ernst
E