Fabrication of advanced Bragg gratings with complex apodization profiles by use of the polarization control method.
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.
Deyerl
Hans-Jürgen
HJ
Research and Education Center for Communication Optics and Materials, Technical University of Denmark, Orsted Plads, Building 345 V, DK-2800 Kongens, Lyngby, Denmark. hjd@com.dtu.dk
Plougmann
Nikolai
N
Jensen
Jesper Bo
JB
Floreani
Filip
F
Sörensen
Henrik Rokkjaer
HR
Kristensen
Martin
M