Experimental reconstruction of a highly reflecting fiber Bragg grating by using spectral regularization and inverse scattering

Experimental reconstruction of a highly reflecting

A. Rosenthal, M. Horowitz, S. Kieckbusch, E. Brinkmeyer ,
Experimental reconstruction of a highly reflecting fiber Bragg grating by using spectral regularization and inverse scattering
J. Opt. Soc. Am. A 24(10), pp. 3284-3288 (2007)

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.

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