Towards THz beam steering with integrated phased photomixer arrays

Peter Offermans; Lei Zhang; Sachin Kasture; Roelof Jansen; Peter de Heyn; Jeonghwan Song; Sofie Janssen; Sadhishkumar Balakrishnan; Philippe Soussan; Joris Van Campenhout; Xavier Rottenberg

doi:10.1117/12.2583195

11 March 2021 Towards THz beam steering with integrated phased photomixer arrays

Peter Offermans, Lei Zhang, Sachin Kasture, Roelof Jansen, Peter de Heyn, Jeonghwan Song, Sofie Janssen, Sadhishkumar Balakrishnan, Philippe Soussan, Joris Van Campenhout, Xavier Rottenberg

Author Affiliations +

Proceedings Volume 11685, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV; 116851F (2021) https://doi.org/10.1117/12.2583195
Event: SPIE OPTO, 2021, Online Only

Abstract

This paper presents the necessary building blocks towards the realization of on-chip, lens-free, spectrally selective, THz beam steering. We demonstrate continuous wave (CW) THz generation up to 2.2 THz by photomixing using antenna-coupled silicon-integrated germanium photodiodes, which reach an optical-to-THz conversion efficiency of about 1% at 100 GHz. We show THz beam forming within a small antenna array and address key challenges towards the realization of large quasi-optical THz phased arrays, by demonstrating low-loss (<0.2 dB/cm), low phase error routing and optical beam steering within hybrid Si/SiN optical phased arrays. Finally, we present an anti-reflection structure enabling lensfree THz beam steering.

Conference Presentation

Citation Download Citation

Peter Offermans, Lei Zhang, Sachin Kasture, Roelof Jansen, Peter de Heyn, Jeonghwan Song, Sofie Janssen, Sadhishkumar Balakrishnan, Philippe Soussan, Joris Van Campenhout, and Xavier Rottenberg "Towards THz beam steering with integrated phased photomixer arrays", Proc. SPIE 11685, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV, 116851F (11 March 2021); https://doi.org/10.1117/12.2583195

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