Semiconductor Terahertz Technology

Guillermo, Carpintero; García-Muñoz, Luis Enrique; Hartnagel, H.L.; Preu, Sascha; Räisänen, Antti V.

doi:10.1002/9781118920411

Cited by 73 publications

References 5 publications

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On‐Chip Polarization‐ and Frequency‐Division Demultiplexing for Multidimensional Terahertz Communication

Deng

Liao

Zhang

et al. 2022

Laser & Photonics Reviews

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Integrated terahertz (THz) technology is of great significance for driving high-speed communication, sensing, and imaging with its advantages of miniaturization, low cost, and high efficiency. Recent research has focused on highly-efficient transmitters and ultrafast detectors, as well as exploring new devices for coupling, transmission, and polarization control. However, multidimensional on-chip multiplexing and demultiplexing techniques in the THz region still remains unexplored, due to the lack of multifunctional integrated components and systems. Here, a novel silicon-based integrated multidimensional THz (de)multiplexer for high-capacity communication is proposed and demonstrated based on ring resonators and polarization beam splitter-rotators, which simultaneously enable the manipulation of THz polarization and frequency. Furthermore, a THz communication system operating in the 380 GHz band is experimentally demonstrated. By using on-chip polarization-and frequency-division multiplexing techniques, an aggregate data rate of 8 Gbit s −1 is successfully achieved with quadrature phase-shift keying modulation scheme. This work provides a spectrally efficient way for accelerating the development of on-chip THz technologies and the application in future large-volume communications.

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