Title :
Broadband Notch Filters Based on Quasi-2-D Photonic Crystal Waveguides for InP-Based Monolithic Photonic-Integrated Circuits
Author :
Davanco, Marcelo ; Xing, Aimin ; Raring, James W. ; Hu, Evelyn L. ; Blumenthal, Daniel J.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA
Abstract :
Asymmetric (type B) multimode photonic crystal line-defect waveguides with varying channel widths have been fabricated and analyzed experimentally. The waveguide channel widths influence the frequencies, bandwidths, and extinction of the resulting stopbands. Transmission stopbands were obtained with bandwidths greater than 20 nm and extinction equal to 20 dB. A scheme for reducing the distributed-feedback reflections from the waveguides was also devised, and a suppression of at least 10 dB was achieved. These waveguides show good prospects for the realization of very compact broadband notch filters for monolithic photonic-integrated circuits
Keywords :
III-V semiconductors; indium compounds; integrated optics; notch filters; optical waveguide filters; optical waveguides; photonic crystals; InP-based monolithic photonic-integrated circuits; broadband notch filters; channel widths; distributed-feedback reflections; photonic crystal waveguides; transmission stopbands; Bandwidth; Frequency; Monolithic integrated circuits; Optical filters; Optical reflection; Optical waveguides; Personal communication networks; Photonic crystals; Reflectivity; Waveguide discontinuities; Line-defect waveguides; monolithic integration; optical filters; photonic crystals (PCs);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.879568
