Photonic double-mixing by UTC-PD-integrated HEMT for optical-to-sub-THz/THz carrier frequency down-conversion

A. Satou; T. Otsuji

doi:10.1117/12.2676627

4 October 2023 Photonic double-mixing by UTC-PD-integrated HEMT for optical-to-sub-THz/THz carrier frequency down-conversion

A. Satou, T. Otsuji

Author Affiliations +

Proceedings Volume 12683, Terahertz Emitters, Receivers, and Applications XIV; 1268309 (2023) https://doi.org/10.1117/12.2676627
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

We review recent progress in the development of the UTC-PD-integrated HEMT carrier frequency down-converter as an optical-to-sub-terahertz (THz)/THz carrier frequency down-converter for use in the future beyond 5G wireless networks. First, we investigate the effect of the scaling of the UTC-PD active area on the double-mixing conversion gain. We show that the conversion gain monotonically increases as the active-area size is reduced, due to the suppression of the in-plane diffusion of photoelectrons in the UTC-PD absorption layer. Second, we examine the employment of intensified, low-noise subcarrier signal input to the device enabled by an optical injection-locking technique.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

A. Satou and T. Otsuji "Photonic double-mixing by UTC-PD-integrated HEMT for optical-to-sub-THz/THz carrier frequency down-conversion", Proc. SPIE 12683, Terahertz Emitters, Receivers, and Applications XIV, 1268309 (4 October 2023); https://doi.org/10.1117/12.2676627

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available