The polarization control method offers a flexible, robust, and low-cost route for the parallel fabrication of gratings with complex apodization profiles including several discrete phase shifts and chirp. The performance of several test gratings is evaluated in terms of their spectral response and compared with theoretical predictions. Short gratings with sidelobe-suppression levels in excess of 32 dB and transmission dips lower than 80 dB have been realized. Finally, most of the devices fabricated by the polarization control method show comparable quality to gratings manufactured by far more complex methods.
© 2004 Optical Society of America
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(220.1230) Optical design and fabrication : Apodization
(230.1480) Optical devices : Bragg reflectors
Hans-Jürgen Deyerl, Nikolai Plougmann, Jesper Bo Jensen, Filip Floreani, Henrik Rokkjær Sørensen, and Martin Kristensen, "Fabrication of Advanced Bragg Gratings with Complex Apodization Profiles by Use of the Polarization Control Method," Appl. Opt. 43, 3513-3522 (2004)