28 July 2014 A multi-pixel room-temperature local oscillator subsystem for array receivers at 1.9 THz
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Abstract
We report on the first room-temperature modular multi-pixel Schottky diode-based, tunable, frequency-multiplied local oscillator sub-system at 1.9 THz. This source has been developed to enable efficient high-resolution mapping of the C+ line using suborbital platforms such as the SOFIA aircraft and balloons, as well as space instruments. This compact LO source features four multipliers (X3X2X3X3) to up-convert Ka-band power to 1.9 THz. Preliminary results at 300 K demonstrate more than 5 μW per pixel at 1.9 THz. The source is designed to provide a large output power dynamic range and can be expanded to larger array receivers.
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Jose V. Siles, Jose V. Siles, Imran Mehdi, Imran Mehdi, Choonsup Lee, Choonsup Lee, Robert Lin, Robert Lin, Jon Kawamura, Jon Kawamura, Erich Schlecht, Erich Schlecht, Peter Bruneau, Peter Bruneau, Paul F. Goldsmith, Paul F. Goldsmith, } "A multi-pixel room-temperature local oscillator subsystem for array receivers at 1.9 THz", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 914777 (28 July 2014); doi: 10.1117/12.2055011; https://doi.org/10.1117/12.2055011
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