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Microphotonic interference mitigation filter for radio astronomy telescopes

Conference Paper


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.

Publication Date


  • 2004

Citation


  • Alameh, K., Bouzerdoum, A., Eshraghian, K., Ahderom, S., Raisi, M., Zhao, X., . . . Wang, Z. (2004). Microphotonic interference mitigation filter for radio astronomy telescopes. In Proceedings of SPIE - The International Society for Optical Engineering Vol. 5277 (pp. 73-77). doi:10.1117/12.522868

Scopus Eid


  • 2-s2.0-2442670665

Start Page


  • 73

End Page


  • 77

Volume


  • 5277

Issue


Place Of Publication


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.

Publication Date


  • 2004

Citation


  • Alameh, K., Bouzerdoum, A., Eshraghian, K., Ahderom, S., Raisi, M., Zhao, X., . . . Wang, Z. (2004). Microphotonic interference mitigation filter for radio astronomy telescopes. In Proceedings of SPIE - The International Society for Optical Engineering Vol. 5277 (pp. 73-77). doi:10.1117/12.522868

Scopus Eid


  • 2-s2.0-2442670665

Start Page


  • 73

End Page


  • 77

Volume


  • 5277

Issue


Place Of Publication