Experimental demonstration of a THz-to-photonics converter facilitated by electronic IQ mixers and a polarization-multiplexed intensity modulator

Optics Letters 2026

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Authors: Yifan Chen, Jianjun Yu, Jianyu Long, Ying Nian Wu, Ying Wang, LUHAN JIANG, Zhihang Ou, yubing zhang, Kaile Li, Xiongwei Yang, yi wei, Weiping Li
+3 more Kaihui Wang, Wen Zhou, Feng zhao
DOI: 10.1364/ol.588758
Cited by: 4
References: 10

Abstract

To effectively utilize existing fiber infrastructure in wireless-fiber transmission scenarios, especially for potential use in satellite-ground-user links, we propose a novel, to the best of our knowledge, D-band THz-to-photonics converter based on two electronic IQ mixers and a polarization-multiplexed intensity modulator (PM-IM), which enables polarization-insensitive transmissions and results in enhanced performance. With the help of the proposed converter, we successfully demonstrate the experimental transmission of 16-/24-Gbaud quadrature phase shift keying (QPSK) signals over a 2.92-m wireless and 5-km standard single-mode fiber (SSMF) link. Experimental results indicate that the power penalty is measured as 1.1 and 2.9 dB for the two baud rates, respectively, under the 20% soft-decision forward-error-correction (SD-FEC) threshold of 2 × 10 −2 .

Fields of Study & Subjects

Photonic and Optical Devices Advanced Photonic Communication Systems Neural Networks and Reservoir Computing

Publication details

Journal / source
Optics Letters
Publisher
Optica Publishing Group
Volume
51
Issue
7
Pages
1720–1720
Publication date
2 March 2026
Language
EN