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. [Read more…]

Image Description: Fig. 1 Intensity of the measured complex reflection spectrum.

Amir Rosenthal, Moshe Horowitz, Sven Kieckbusch, and Ernst Brinkmeyer, “Experimental reconstruction of a highly reflecting fiber Bragg grating by using spectral regularization and inverse scattering,” J. Opt. Soc. Am. A 24, 3284-3288 (2007)