Title :
Integrated Microwave Photonic Filter on a Hybrid Silicon Platform
Author :
Chen, Hui-Wen ; Fang, Alexander W. ; Peters, Jonathan D. ; Wang, Zhi ; Bovington, Jock ; Liang, Di ; Bowers, John E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California at Santa Barbara, Santa Barbara, CA, USA
Abstract :
A hybrid silicon photonic integrated filter is proposed and demonstrated with a novel structure. This filter incorporates a ring resonator in one arm of a Mach-Zehnder interferometer making it possible to obtain a programmable filter response. The optical filter consists of a 5-mm-long delay loop made of low-loss silicon waveguides with integrated thermal modulators resulting in a 0.164-nm free spectral range with absolute phase tunability and gain elements that allow for the tuning of the filter factor. The microwave response of this integrated filter is measured and display tunability of 20 GHz.
Keywords :
Mach-Zehnder interferometers; Q-factor; elemental semiconductors; integrated optoelectronics; microwave filters; microwave photonics; optical resonators; optical tuning; optical waveguide filters; programmable filters; silicon; Mach-Zehnder interferometer; Q factor; Si; delay loop; gain elements; hybrid silicon photonic integrated filter; integrated thermal modulators; low-loss silicon waveguides; microwave response; optical filter; phase tunability elements; programmable filter; size 5 mm; Microwave filters; Microwave photonics; Modulation; Optical filters; Optical ring resonators; Poles and zeros; Silicon; Hybrid integrated circuits; microwave filters; optical waveguide components; photonic integrated circuits (PICs);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2010.2074870
