Title :
Flat-top drop filter based on a single topology optimized photonic crystal cavity
Author :
Frandsen, Lars H. ; Elesin, Yuriy ; Xiaowei Guan ; Sigmund, Ole ; Yvind, Kresten
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
Outperforming conventional design concepts, a flat-top drop filter has been designed by applying 3D topology optimization to a single waveguide-coupled L3 photonic crystal cavity. Measurements on the design fabricated in silicon-on-insulator material reveal that the pass-band of the drop channel is flat within 0.44 dB over a wavelength range of 9.7 nm with an insertion loss lower than 0.85 dB.
Keywords :
optical couplers; optical design techniques; optical fabrication; optical losses; optical testing; optical waveguide filters; optical waveguides; optimisation; photonic crystals; silicon-on-insulator; topology; 3D topology optimization; flat-top drop filter design; flat-top drop filter fabrication; insertion loss; silicon-on-insulator material; waveguide-coupled L3 photonic crystal cavity; wavelength 9.7 nm; Cavity resonators; Optical filters; Optimization; Photonic crystals; Photonics; Resonator filters; Topology;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
