Proof of concept of a photonic sideband-separating receiver for submm-wave applications

Jorge A. Castillo; Roberto Roman; F. Patricio Mena; Ernest A. Michael

doi:10.1117/12.2055626

23 July 2014 Proof of concept of a photonic sideband-separating receiver for submm-wave applications

Jorge A. Castillo, Roberto Roman, F. Patricio Mena, Ernest A. Michael

Author Affiliations +

Proceedings Volume 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII; 91532G (2014) https://doi.org/10.1117/12.2055626
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

A central component of a sideband separating (2SB) receiver is the quadrature hybrid which splits the incoming radio frequency signal into two branches with a 90°-phase shift. Its fabrication, however, is one of the factors limiting the operational bandwidth and the maximum frequency at which a 2SB can be built. In this paper a 100%-photonic approach to produce this split is presented. In this way, wider operational bandwidth and a higher maximum operational frequency could be achieved. We also present the first experimental results of a proof-of-concept implementation at 55 MHz that studied the phase stability and controllability of this approach using a commercial 90-degree optical hybrid.

Citation Download Citation

Jorge A. Castillo, Roberto Roman, F. Patricio Mena, and Ernest A. Michael "Proof of concept of a photonic sideband-separating receiver for submm-wave applications", Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91532G (23 July 2014); https://doi.org/10.1117/12.2055626

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