High-speed and stable 532-nm electro-optic modulator on thin-film lithium tantalate.

Authors

Xuqiang Wang, Bowen Chen, Weiran Zhou, Jiachen Cai, Tianyao Yang, Bingcheng Yang, Yuanhao Qin, Xinjian Ke, Yang Chen, Kai Huang, Ailun Yi, Jian Shen, Tiangui You, Chengli Wang, Xin Ou

Published in

Optics letters. Volume 51. Issue 15. Pages 4352-4355. Aug 01, 2026.

Abstract

We demonstrate a high-speed, DC-bias-stable Mach-Zehnder electro-optic modulator at 532 nm on a thin-film lithium tantalate on insulator (LTOI) platform. The devices exhibit a minimum half-wave-voltage-length product (V_πL) of 0.22 V⋅cm, a propagation loss of 9.16 dB/cm, and a 3-dB electro-optic bandwidth exceeding 20 GHz, with the output power fluctuation remaining within 1 dB over 10 minutes under continuous visible optical pumping at an input power of 11.8 dBm. These results highlight LTOI's combination of low-voltage, high-speed, and stable performance, positioning it as a promising platform for integrated visible photonics.

PMID:
42537187
Bibliographic data and abstract were imported from PubMed on 01 Aug 2026.

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