A multi-pixel room-temperature local oscillator subsystem for array receivers at 1.9 THz

Jose V. Siles; Imran Mehdi; Choonsup Lee; Robert Lin; Jon Kawamura; Erich Schlecht; Peter Bruneau; Paul F. Goldsmith

doi:10.1117/12.2055011

28 July 2014 A multi-pixel room-temperature local oscillator subsystem for array receivers at 1.9 THz

Jose V. Siles, Imran Mehdi, Choonsup Lee, Robert Lin, Jon Kawamura, Erich Schlecht, Peter Bruneau, Paul F. Goldsmith

Proceedings Volume 9147, Ground-based and Airborne Instrumentation for Astronomy V; 914777 (2014) https://doi.org/10.1117/12.2055011
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

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.

Citation Download Citation

Jose V. Siles, Imran Mehdi, Choonsup Lee, Robert Lin, Jon Kawamura, Erich Schlecht, Peter Bruneau, and 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); https://doi.org/10.1117/12.2055011

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