Title

Microphotonic interference mitigation filter for radio astronomy telescopes

Document Type

Conference Proceeding

Publisher

SPIE

Place of Publication

United States of America

School

Electron Science Research Institute

RAS ID

2781

Comments

Originally published as: Alameh, K., Bouzerdoum, A., Eshraghian, K., Ahderom, S.T., Raisi, M., Xhao, X., Zheng, R., Wang, Z. (2004). Microphotonic interference mitigation filter for radio astronomy telescopes. In Proceedings of SPIE, Volume 5277, Photonics: Design, Technology and Packaging. Perth, Australia. Original paper available here

Abstract

MicroPhotonic broadband RF signal processors utilize the capability of photons to perform true-time delay processing at very low loss that is unattainable by conventional electronic methods. In this paper, we present a novel MicroPhotonic interference mitigation filter architecture that utilises a CMOS Si photoreceiver/VCSEL array in conjunction with a true-time-delay multi-cavity optical substrate to realise an adaptive transversal RF processor with arbitrary response. Results show that the proposed MicroPhotonic structure can synthesize adaptive interference mitigation with a shape factor (ratio of the -40dB bandwidth to the -3dB bandwidth) as low as 2 and passband ripples less than 0.25dB.

DOI

10.1117/12.522868

 

Link to publisher version (DOI)

10.1117/12.522868