Integrated heterodyne terahertz transceiver
| DWPI Title: Integrated heterodyne terahertz transceiver for remote sensing system, couples terahertz local oscillator power to Schottky diode to mix with received terahertz signal to output intermediate frequency signal |
| Abstract: A heterodyne terahertz transceiver comprises a quantum cascade laser that is integrated on-chip with a Schottky diode mixer. An antenna connected to the Schottky diode receives a terahertz signal. The quantum cascade laser couples terahertz local oscillator power to the Schottky diode to mix with the received terahertz signal to provide an intermediate frequency output signal. The fully integrated transceiver optimizes power efficiency, sensitivity, compactness, and reliability. The transceiver can be used in compact, fieldable systems covering a wide variety of deployable applications not possible with existing technology. |
| Use: Integrated heterodyne terahertz transceiver for remote sensing system. Can also be used in applications such as space and atmospheric science, molecular spectroscopy, biology, medical imaging and communications. |
| Advantage: The transceiver enables high efficiency, sensitivity, compactness and reliability while delivering local oscillator power to the mixture. |
| Novelty: A quantum cascade laser has layered hetero structures of semiconductor alloys that forms active semiconductor core (23) between top waveguide layer (28) and bottom waveguide layer (29) on semiconductor substrate. A receiver in top waveguide layer, has rectifying metal contact on layered hetero structures to form Schottky diode (27). An antenna (26) on rectifying metal contact receives terahertz signal. The quantum cascade laser couples terahertz local oscillator power to Schottky diode to mix with received terahertz signal to output intermediate frequency signal. |
| Filed: 1/25/2007 |
| Application Number: US2007698010A |
| Tech ID: SD 7957.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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