Complex Bragg Grating Writing using Direct Modulation of the Optical Fibre with Flexural Waves
; Canning, J.
; Pohl, A.
Applied Physics Letters Vol. 99, Nº 16, pp. 161111 - 161111-3, October, 2011.
ISSN (print): 1077-3118
ISSN (online): 0003-6951
Journal Impact Factor: 3,726 (in 2008)
Digital Object Identifier: 10.1063/1.3655328
A flexural wave is applied to an optical fiber during the process of Bragg grating inscription using the direct writing method through a phase mask. Using this approach, we can dither the writing process to allow complex grating writing. Examples we demonstrate are tunable sampled gratings and phase-shifted gratings.