A Photonic mm-Wave Local Oscillator

Details A Photonic mm-Wave Local Oscillator A Photonic mm-Wave Local Oscillator

2006-05-31

arxiv.org/abs/astro-ph/0605737v1

Astronomy and Astrophysics

Astrophysics

4 pages, 7 figures, to appear in the Proceedings of the 17th International Symposium on Space Terahertz Technology, held 10-12

Scientific paper

10.1117/12.686200

A photonic millimeter wave local oscillator capable of producing two microwatts of radiated power at 224 GHz has been developed. The device was tested in one antenna of Smithsonian Institution's Submillimeter Array (SMA) and was found to produce stable phase on multiple baselines. Graphical data is presented of correlator output phase and amplitude stability. A description of the system is given in both open and closed loop modes. A model is given which is used to predict the operational behavior. A novel method is presented to determine the safe operating point of the automated system.

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