What does this research mean for the field?

A micro-transfer-printed lithium tantalate-on-silicon nitride heterogeneous modulator achieves an electro-optic bandwidth exceeding 110 GHz and an insertion loss of 1.0 dB, enabling high-speed optical and terahertz communications as well as high-resolution radar sensing. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop and evaluate a broadband thin-film lithium tantalate-on-silicon nitride heterogeneous Mach-Zehnder modulator for integrated optical, terahertz, and radar systems.

August 22, 2026Nature CommunicationsOpen Access

A broadband lithium tantalate-on-silicon nitride heterogeneous modulator for optical and terahertz communications and radar sensing

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Authors

JSJinwei SuShanghai Jiao Tong University YYYuqin YuanUniversity of Science and Technology of China YDYiqi DaiWuhan National Laboratory for Optoelectronics

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Implication

Experimental study demonstrates high-performance heterogeneous electro-optic modulation via micro-transfer printing, highlighting scalable photonic chips for multi-domain communication and sensing.

Key Points

To develop and evaluate a broadband thin-film lithium tantalate-on-silicon nitride heterogeneous Mach-Zehnder modulator for integrated optical, terahertz, and radar systems.
Fabricated a thin-film lithium tantalate-on-silicon nitride heterogeneous Mach-Zehnder modulator using micro-transfer printing.
Characterized insertion loss, electro-optic bandwidth up to high frequencies, and bias stability over a 72-hour period.
Evaluated performance in optical data transmission, D-band photonic terahertz wireless communications, and W-band radar sensing setups.
The modulator exhibited an insertion loss of 1.0 dB, an electro-optic bandwidth exceeding 110 GHz, and a power drift of ~0.3 dB over 72 hours at quadrature bias.
Achieved an optical data transmission rate exceeding 375 Gbps and a record wireless transmission rate of 148 Gbps in the D-band.
Demonstrated W-band radar sensing with a range resolution of 1.2 cm and measurement errors below 2 mm.

Cite This Study

Su et al. (2026) studied this question.

synapsesocial.com/papers/6a898131ca7ade938187f2b5 https://doi.org/10.1038/s41467-026-76800-0

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Implication

Experimental study demonstrates high-performance heterogeneous electro-optic modulation via micro-transfer printing, highlighting scalable photonic chips for multi-domain communication and sensing.

A broadband lithium tantalate-on-silicon nitride heterogeneous modulator for optical and terahertz communications and radar sensing

Discussion

Member takes

Implication

Key Points

Cite This Study

A broadband lithium tantalate-on-silicon nitride heterogeneous modulator for optical and terahertz communications and radar sensing

Discussion

Member takes

Implication

Key Points

Cite This Study

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