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19 April 2017 Terahertz wireless communication based on InP-related devices (Conference Presentation)
Eui Su Lee, Hyun-Soo Kim, Jeong-Woo Park, Dong Woo Park, Kyung Hyun Park
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Proceedings Volume 10103, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications X; 101030L (2017) https://doi.org/10.1117/12.2256811
Event: SPIE OPTO, 2017, San Francisco, California, United States
Abstract
Recently, a wide interest has been gathered in using terahertz (THz) waves as the carrier waves for the next generation of broadband wireless communications. Upon this objective, the photonics technologies are very attractive for their usefulness in signal generations, modulations and detections with enhanced bandwidth and data rates, and the readiness in combining to the existing fiber-optic or wireless networks. In this paper, as a preliminary step toward the THz wireless communications, a THz wireless interconnection system with a broadband antenna-integrated uni-traveling-carrier photodiode (UTC-PD) and a Shottky-barrier diode (SBD) module will be presented. In our system, optical beating signals are generated and digitally modulated by the optical intensity modulator driven by a pulse pattern generator (PPG). As the receiver a SBD and an IF filter followed by a low-noise preamplifier and a limiting amplifier was used. With a 6-mA photocurrent of the UTC-PD which corresponds to the transmitter output power of about 30 μW at 280 GHz, an error-free (BER<10-9) transmission has been achieved at 2.5 Gbit/s which is limited by a limiting amplifier. With this system, a 1.485-Gbit/s video signal with a high-definition serial digital interface format was successfully transmitted over a wireless link.
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Eui Su Lee, Hyun-Soo Kim, Jeong-Woo Park, Dong Woo Park, and Kyung Hyun Park "Terahertz wireless communication based on InP-related devices (Conference Presentation)", Proc. SPIE 10103, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications X, 101030L (19 April 2017); https://doi.org/10.1117/12.2256811
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KEYWORDS
Terahertz radiation
Wireless communications
Modulation
Optical amplifiers
Signal generators
Telecommunications
Fiber optic networks
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