In this paper we review some of the dominant topics in fiber Bragg gratings (FBGs). The combination of theory and simulations shows that these structures can use in filters, nonlinear fiber optical applications, soliton propagations etc. We discussed the theory of FBGs, grating solitons, Bragg soliton generation in intrinsic media and birefringence effects in FBGs together with some numerical s...

Linear sideband chirped (LSC) programming is introduced as a means of configuring spatial-spectral holographic gratings for optical coherent transient processors. Similar to linear frequency chirped programming, LSC programming allows the use of broadband integrated electro-optic phase modulators to produce chirps instead of using elaborate broadband chirped lasers. This approach has several ad...

Direct, point-by-point inscription of fiber Bragg gratings by infrared femtosecond laser had been recently reported. Response of these gratings to annealing at temperatures in range 500C to 1050C is studied for the first time. Gratings inscribed by infrared femtosecond lasers were thermally stable at temperatures up to 900C, representing a significant improvement in comparison with the “common”...

Photonic time-stretch applications overcome the speed limitations of conventional digitizers and enable observation nonrepetitive statistically rare phenomena that occur on short timescales. In most applications, large temporal dispersion with bandwidth is highly desired to satisfy far-field diffraction regime. However, spatial dispersers or chirped fiber Bragg gratings are constrained by their...

A. I. Gusarov is with the Faculté Polytechnique de Mons and also with the SCK·CEN Belgian Nuclear Research Centre, Mol, Belgium. D. S. Starodubov is with D-STAR Technologies, Inc., USA. F. Berghmans is with the SCK·CEN Belgian Nuclear Research Centre, Mol, and also with the Vrije Universiteit Brussel, Belgium. O. Deparis, Y. Defosse, P. Mégret, and M.Blondel are with the Faculté Polytechnique d...