Microphotonic interference mitigation filter for radio astronomy telescopes

K. Alameh*, A. Bouzerdoum, K. Eshraghian, S. Ahderom, M. Raisi, X. Zhao, R. Zheng, Z. Wang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

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 synthesise 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.

Original languageEnglish
Pages (from-to)73-77
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5277
DOIs
Publication statusPublished - 2004
Externally publishedYes
EventPhotonics: Design, Technology, and Packaging - Perth, WA, Australia
Duration: 10 Dec 200312 Dec 2003

Keywords

  • MicroPhotonic
  • RF signal processor
  • True-time delay

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