Title :
Apodisation of photo-induced waveguide gratings with double-exposure of reversely varied duty cycles
Author :
Shu, Xuewen ; Sugden, Kate ; Bennion, Ian
Author_Institution :
Aston Univ., Birmingham
Abstract :
We present a novel apodisation scheme for photo-induced waveguide gratings. The apodisation is implemented with double exposures that have reversely varying duty cycles. We have successfully applied the proposed scheme to remove the sidelobes of long period gratings.
Keywords :
diffraction gratings; optical images; optical waveguides; apodisation; double exposure; duty cycles; long period grating sidelobe; photo-induced waveguide grating; Bragg gratings; Fiber gratings; Optical devices; Optical fiber communication; Optical fibers; Optical refraction; Optical sensors; Optical waveguides; Photonics; Refractive index;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4452529
