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Conference Paper
Demonstration of Efficient Uplink Configuration using Optical Carrier Sharing in Photonic-based THz Communications
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- Authors
- Minkyu Sung, Sang-Rok Moon, Sooyeon Kim, Joon Ki Lee, Seung-Hyun Cho
- Issue Date
- 2024-07
- Citation
- Opto-Electronics and Communications Conference (OECC) 2024, pp.1-3
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we present the enhancement of efficiency in photonic terahertz (THz) communication systems through the demonstration of sharing optical carrier in uplink configurations. By repurposing optical carrier designated as the optical local oscillator (LO) for uplink applications, which is initially only used in the mixing process for THz signal generation, the efficiency of optical heterodyne-based photonic THz communication systems can be improved. We experimentally confirm the feasibility of this method by successfully transmitting a 40 Gb/s discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-spread OFDM) signal for the uplink and a 40 Gb/s conventional OFDM signal for the downlink.
- KSP Keywords
- 40 Gb/s, Communication system, Discrete Fourier Transform-spread(DFT-spread), Mixing process, OFDM signals, Orthogonal Frequency-Division Multiplexing(OFDM), Signal generation, Spread OFDM, Terahertz (THz) Communication, conventional OFDM, local oscillator