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Audio signal transmission over THz communication channel using semiconductor modulator

Audio signal transmission over THz communication channel using semiconductor modulator

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The first demonstration has been made of the transmission of an audio signal via a THz communication channel using a recently developed room temperature semiconductor THz modulator which is based on the depletion of a two-dimensional electron gas. A standard THz time-domain spectroscopy setup is modified to transmit signals up to 25 kHz over a 75 MHz train of broadband THz pulses.

References

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      • D. Grischkowsky . Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors. J. Opt. Soc. Am. B , 10 , 2006 - 2015
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      • J.W. Bowen , Miles . (2001) Towards terahertz communications—systems requirements, Terahertz sources and systems.
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      • C.M. Mann , Miles . (2001) Towards terahertz communications systems, Terahertz sources and systems.
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