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Proceedings Paper

Photonic mm-wave local oscillator
Author(s): Robert Kimberk; Todd Hunter; C.-Y. Edward Tong; Raymond Blundell
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Paper Abstract

A millimeter wave source derived from a phase modulated optical signal has been developed. The spectral purity and phase control of the phase of the source allowed it to be used as a local oscillator with an astronomical millimeter wave interferometric array. The phase and amplitude stability of the correlated signals of the array are comparable to that produced by Gunn based local oscillators. The system is explained in the following article first as a simple open loop system and then as a more complex closed loop device where the phase is controlled. A mathematical description is given which predicts system behavior. The telescope correlator output graphs show phase and amplitude stability.

Paper Details

Date Published: 12 October 2006
PDF: 7 pages
Proc. SPIE 6373, Terahertz Physics, Devices, and Systems, 63730A (12 October 2006);
Show Author Affiliations
Robert Kimberk, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Todd Hunter, Harvard-Smithsonian Ctr. for Astrophysics (United States)
C.-Y. Edward Tong, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Raymond Blundell, Harvard-Smithsonian Ctr. for Astrophysics (United States)


Published in SPIE Proceedings Vol. 6373:
Terahertz Physics, Devices, and Systems
Mehdi Anwar; Anthony J. DeMaria; Michael S. Shur, Editor(s)

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