Novel custom fiber Bragg grating fabrication technique based on push-pull phase shifting interferometry.
A new UV-writing technique is proposed for fabricating custom fiber Bragg gratings (FBGs). A continuously moving fringe pattern is generated by use of two electro-optical UV modulators and synchronized with a moving fiber. This scheme potentially enables the fabrication of infinitely long FBGs with arbitrary profiles and chirp without any mechanical perturbation of the writing interferometer. Preliminary results of this technique are presented and discussed.
Gagné
Mathieu
M
Advanced Photonics Concepts Laboratory, Department of Engineering Physics1, Ecole Polytechnique de Montréal, C.P. 6079, Succ. Centre-ville, Montréal H3C 3A7, QC, Canada. mathieu-2.gagne@polymtl.ca
Bojor
Lucian
L
Maciejko
Romain
R
Kashyap
Raman
R