Abstract

Ultrafast infrared induced fiber Bragg gratings in a hydrogen-loaded SMF-28 fiber are shown to exhibit complex and, what we believe to be, novel spectral evolutions. It is believed that the induced grating peak profile in the fiber is nonsinusoidal as a result of the nonlinear absorption required to modify the material. Rouard’s method is used to show that the observed spectral evolution is a consequence of the saturation of the nonsinusoidal index change profile.

© 2008 Optical Society of America

Rouard's method modeling of type I-IR fiber Bragg gratings made using an ultrafast IR laser and a phase mask

Christopher W. Smelser, Stephen J. Mihailov, and Dan Grobnic
J. Opt. Soc. Am. B 23(10) 2011-2017 (2006)

Characterization of Fourier components in type I infrared ultrafast laser induced fiber Bragg gratings

Christopher W. Smelser, Stephen J. Mihailov, and Dan Grobnic
Opt. Lett. 32(11) 1453-1455 (2007)

Hydrogen loading for fiber grating writing with a femtosecond laser and a phase mask

Christopher W. Smelser, Stephen J. Mihailov, and Dan Grobnic
Opt. Lett. 29(18) 2127-2129 (2004)

Formation of Type I-IR and Type II-IR gratings with an ultrafast IR laser and a phase mask

Christopher W. Smelser, Stephen J. Mihailov, and Dan Grobnic
Opt. Express 13(14) 5377-5386 (2005)

Type I and II Bragg gratings made with infrared femtosecond radiation in high and low alumina content aluminosilicate optical fibers

Dan Grobnic, Stephen J. Mihailov, John Ballato, and Peter D. Dragic
Optica 2(4) 313-322 (2015)