Photomixer transceiver

Simon Verghese; K. Alexander McIntosh; Steve Calawa; William F. DiNatale; Erik K. Duerr; L. H. Mahoney

doi:10.1117/12.347116

29 April 1999 Photomixer transceiver

Simon Verghese, K. Alexander McIntosh, Steve Calawa, William F. DiNatale, Erik K. Duerr, L. H. Mahoney

Proceedings Volume 3617, Terahertz Spectroscopy and Applications; (1999) https://doi.org/10.1117/12.347116
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

Two low-temperature-grown GaAs photomixers were used to construct a transmit-and-receive module that is frequency agile over the band 25 GHz to 2 THz, or 6.3 octaves. The photomixer transmitter emits the THz difference frequency of two detuned diode lasers. The photomixer receiver then linearly detects the THz wave by homodyne down conversion. The concept was demonstrated using microwave and quasioptical photomixers. Compared to time-domain photoconductive sampling, the photomixer transceiver offers improved frequency resolution, spectral brightness, system size, and cost.

Citation Download Citation

Simon Verghese, K. Alexander McIntosh, Steve Calawa, William F. DiNatale, Erik K. Duerr, and L. H. Mahoney "Photomixer transceiver", Proc. SPIE 3617, Terahertz Spectroscopy and Applications, (29 April 1999); https://doi.org/10.1117/12.347116

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