@inproceedings{4791cbe7b9694c9d8792b0d987ab8a9b,
title = "UTC-PD-integrated HEMT for optical-to-sub-terahertz carrier frequency down-conversion",
abstract = "We developed a novel InGaAs-channel high-electron-mobility transistor (HEMT) integrated with a uni-traveling-carrier photodiode (UTC-PD) structure for the optical-to-wireless carrier frequency down-conversion. We experimentally demonstrated that the output intensity of the down-converted signal is significantly enhanced by 34 dB compared with a standard HEMT, owning to the integration of the UTC-PD structure. We also verified the feasibility of the UTC-PD-integrated HEMT for practical use in the future full coherent network systems.",
keywords = "Full coherent network, InGaAs-HEMT, Photonic double-mixing, UTC-PD",
author = "A. Satou and K. Nishimura and Y. Omori and T. Hosotani and K. Iwatsuki and T. Otsuji",
note = "Funding Information: This work was financially supported by “R&D project on carrier-conversion technology with high environmental tolerance Research and System demonstration on high capacity O/E and E/O carrier-conversion technology for next generation wireless and wired networks” of the Commissioned Research of National Institute of Information and Communications Technology (NICT), Japan. We thank Drs. J. Terada and J. Kani, NTT Access Network Service System Labs., Japan, for the use of their equipment and valuable discussions about the measurement systems. We thank Drs. V. Ryzhii, T. Suemitsu, Research Institute of Electrical Communication, Tohoku University, Japan, for the device fabrications and measurements as well as valuable discussions about them. We thank NTT-AT Corp. for cooperation in processing the sample fabrication of A-DGG HEMTs. The device process of InGaAs-HEMTs was carried out at the Laboratory for Nanoelectronics and Spintronics of Tohoku University, Japan. Publisher Copyright: {\textcopyright} 2020 SPIE; Next-Generation Spectroscopic Technologies XIII 2020 ; Conference date: 27-04-2020 Through 08-05-2020",
year = "2020",
doi = "10.1117/12.2557170",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Profeta, {Luisa T. M.} and Azad, {Abul K.} and Barnett, {Steven M.}",
booktitle = "Next-Generation Spectroscopic Technologies XIII",
address = "United States",
}