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

Volume

12

Issue

6

fYear

2006

Firstpage

1164

Lastpage

1174

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);

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2006.879568

Filename

4032648