27 August 2010 Photonic generation of continuous terahertz waves and its application to sensing and communications
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Abstract
We show that phohtonic technologies developed for conventional fiber-optic communications have potential for use in contemporary terahertz-wave applications, such as remote sensing and wireless communications. Advanced unitravelling photodiodes (UTC-PDs) can produce output power of 0.5 mW at 350 GHz and 10 μW at 1 THz. Using the UTC-PD and other optical devices, we demonstrate a time-continuous terahertz-wave signal generator that can tune the output signal over a wide frequency range with very narrow spectral linewidth and gas-sensing with the terahertz-wave source. We also show some preliminary results for terahertz-wave wireless communications using photonic technologies.
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Ho-Jin Song, Ho-Jin Song, Naofumi Shimizu, Naofumi Shimizu, Yuichi Kado, Yuichi Kado, Tadao Nagatsuma, Tadao Nagatsuma, } "Photonic generation of continuous terahertz waves and its application to sensing and communications", Proc. SPIE 7763, Terahertz Emitters, Receivers, and Applications, 776307 (27 August 2010); doi: 10.1117/12.861731; https://doi.org/10.1117/12.861731
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