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.
|Title of host publication||Conference on Lasers and Electro-Optics, 2007, CLEO 2007|
|Publication status||Published - 1 Dec 2007|
|Event||Conference on Lasers and Electro-Optics, CLEO 2007 - Baltimore, MD, United Kingdom|
Duration: 6 May 2007 → 6 May 2007
|Conference||Conference on Lasers and Electro-Optics, CLEO 2007|
|Period||6/05/07 → 6/05/07|