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Proceedings Paper

Proof of concept of a photonic sideband-separating receiver for submm-wave applications
Author(s): Jorge A. Castillo; Roberto Roman; F. Patricio Mena; Ernest A. Michael
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Paper 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.

Paper Details

Date Published: 23 July 2014
PDF: 7 pages
Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91532G (23 July 2014); doi: 10.1117/12.2055626
Show Author Affiliations
Jorge A. Castillo, ALMA Observatory (Chile)
Roberto Roman, Univ. de Chile (Chile)
F. Patricio Mena, Univ. de Chile (Chile)
Ernest A. Michael, Univ. de Chile (Chile)

Published in SPIE Proceedings Vol. 9153:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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