Peter Unger, Gian-Luca Bona, et al.
IEEE Journal of Quantum Electronics
We report on the fabrication of a grating-based add - drop filter in SiON planar waveguide technology. We achieved apodization of the Bragg grating by concatenating subgratings with various duty cycles. We present the theoretical and experimental dependence of the coupling coefficient on the duty cycle, which leads to a minimum coupling coefficient of 30%. With a breeder genetic algorithm we were able to find optimal apodization profiles within this limited coupling coefficient range. The final device is compatible with a 100-GHz channel spacing and has a bandwidth utilization factor of 36%. © 2003 Optical Society of America.
Peter Unger, Gian-Luca Bona, et al.
IEEE Journal of Quantum Electronics
Christian Kromer, Gion Sialm, et al.
IEEE Journal of Solid-State Circuits
Rik Harbers, Nikolaj Moll, et al.
Journal of the Optical Society of America A: Optics and Image Science, and Vision
Gian-Luca Bona, Roland Germann, et al.
IBM J. Res. Dev