The optical phased array (OPA) is an emerging non-mechanical device that enables high-speed beam steering by emitting precisely phase-controlled lightwaves from numerous optical antennas. In practice, however, it is challenging to drive all phase shifters on an OPA in a deterministic manner due to the inevitable fabrication-induced phase errors and crosstalk between the phase shifters. In this work, we fabricate a 16-element silicon photonic non-redundant OPA chip with integrated phase monitors and experimentally demonstrate accurate monitoring of the relative phases of light from each optical antenna. Under the beam steering condition, the optical phase retrieved from the on-chip phase monitors varies linearly with the steering angle, as theoretically expected.
Shun TAKAHASHI
The University of Tokyo
Taichiro FUKUI
The University of Tokyo
Ryota TANOMURA
The University of Tokyo
Kento KOMATSU
The University of Tokyo
Yoshitaka TAGUCHI
The University of Tokyo
Yasuyuki OZEKI
The University of Tokyo
Yoshiaki NAKANO
The University of Tokyo
Takuo TANEMURA
The University of Tokyo
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Shun TAKAHASHI, Taichiro FUKUI, Ryota TANOMURA, Kento KOMATSU, Yoshitaka TAGUCHI, Yasuyuki OZEKI, Yoshiaki NAKANO, Takuo TANEMURA, "Silicon Photonic Optical Phased Array with Integrated Phase Monitors" in IEICE TRANSACTIONS on Electronics,
vol. E106-C, no. 11, pp. 748-756, November 2023, doi: 10.1587/transele.2022OCP0003.
Abstract: The optical phased array (OPA) is an emerging non-mechanical device that enables high-speed beam steering by emitting precisely phase-controlled lightwaves from numerous optical antennas. In practice, however, it is challenging to drive all phase shifters on an OPA in a deterministic manner due to the inevitable fabrication-induced phase errors and crosstalk between the phase shifters. In this work, we fabricate a 16-element silicon photonic non-redundant OPA chip with integrated phase monitors and experimentally demonstrate accurate monitoring of the relative phases of light from each optical antenna. Under the beam steering condition, the optical phase retrieved from the on-chip phase monitors varies linearly with the steering angle, as theoretically expected.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2022OCP0003/_p
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@ARTICLE{e106-c_11_748,
author={Shun TAKAHASHI, Taichiro FUKUI, Ryota TANOMURA, Kento KOMATSU, Yoshitaka TAGUCHI, Yasuyuki OZEKI, Yoshiaki NAKANO, Takuo TANEMURA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Silicon Photonic Optical Phased Array with Integrated Phase Monitors},
year={2023},
volume={E106-C},
number={11},
pages={748-756},
abstract={The optical phased array (OPA) is an emerging non-mechanical device that enables high-speed beam steering by emitting precisely phase-controlled lightwaves from numerous optical antennas. In practice, however, it is challenging to drive all phase shifters on an OPA in a deterministic manner due to the inevitable fabrication-induced phase errors and crosstalk between the phase shifters. In this work, we fabricate a 16-element silicon photonic non-redundant OPA chip with integrated phase monitors and experimentally demonstrate accurate monitoring of the relative phases of light from each optical antenna. Under the beam steering condition, the optical phase retrieved from the on-chip phase monitors varies linearly with the steering angle, as theoretically expected.},
keywords={},
doi={10.1587/transele.2022OCP0003},
ISSN={1745-1353},
month={November},}
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TY - JOUR
TI - Silicon Photonic Optical Phased Array with Integrated Phase Monitors
T2 - IEICE TRANSACTIONS on Electronics
SP - 748
EP - 756
AU - Shun TAKAHASHI
AU - Taichiro FUKUI
AU - Ryota TANOMURA
AU - Kento KOMATSU
AU - Yoshitaka TAGUCHI
AU - Yasuyuki OZEKI
AU - Yoshiaki NAKANO
AU - Takuo TANEMURA
PY - 2023
DO - 10.1587/transele.2022OCP0003
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E106-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2023
AB - The optical phased array (OPA) is an emerging non-mechanical device that enables high-speed beam steering by emitting precisely phase-controlled lightwaves from numerous optical antennas. In practice, however, it is challenging to drive all phase shifters on an OPA in a deterministic manner due to the inevitable fabrication-induced phase errors and crosstalk between the phase shifters. In this work, we fabricate a 16-element silicon photonic non-redundant OPA chip with integrated phase monitors and experimentally demonstrate accurate monitoring of the relative phases of light from each optical antenna. Under the beam steering condition, the optical phase retrieved from the on-chip phase monitors varies linearly with the steering angle, as theoretically expected.
ER -