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SBIR/STTR

High Power Room Temperature Terahertz Local Oscillator, Phase II

Completed Technology Project

Project Introduction

High Power Room Temperature Terahertz Local Oscillator, Phase II
The motivation of the proposed SBIR is to develop, demonstrate and commercialize a compact, low-mass, high output power (1-10 milliwatt), tunable source of CW THz radiation operating at room temperature. The source will be useful both as a narrow band frequency stable sources for driving heterodyne receivers at key frequencies between 1 and 5 THz (1.4, 1.9, 2.7, 4.7 etc..) or for laboratory sources to characterize THz components, including MMIC's, or possibly for active spectrometers in an in-situ environment The proposed source would enable the development of THz array receivers for use in space and suborbital missions, or for atmospheric sounders and planetary landers. In Phase 1 our VECSEL THz source, based on intra-cavity difference frequency generation, demonstrated 2mW at 1.9THz running on a finite number of cavity modes with a linewidth per mode of around 1MHz. Desert Beam Technologies will team up TeraVision (Tucson) and with researchers at the Steward Observatory Radio Astronomy Laboratory (SORAL), University of Arizona in Phase 2 to further characterize a breadboard VECSEL 1.9THz system, measure Y-factor and I-V curves, redesign the VECSEL cavity to reduce it to single mode operation and test it as a local oscillator for SORAL's 1.9THz receiver. More »

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