What question did this study set out to answer?

To develop an integrated chip-scale photonic terahertz transmitter that eliminates bulky optical assemblies and high coupling losses without sacrificing component bandwidth or efficiency.

August 16, 2026Nature CommunicationsOpen Access

Heterogeneously integrated photonic terahertz transmitter on thin-film lithium niobate

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Authors

LWLuyu WangShanghaiTech University HFHanke FengCity University of Hong Kong LBLiga BaiZhejiang University

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Implication

Experimental study demonstrates a chip-scale photonic terahertz transmitter combining III-V photodiodes with thin-film lithium niobate, indicating scalable high-speed wireless interconnects.

Key Points

To develop an integrated chip-scale photonic terahertz transmitter that eliminates bulky optical assemblies and high coupling losses without sacrificing component bandwidth or efficiency.
Heterogeneously bonded an indium phosphide (InP) uni-traveling-carrier photodiode (UTC-PD) directly onto a thin-film lithium niobate (TFLN) modulator chip.
Evaluated transmitter performance in sub-THz wireless links at 150 GHz and 200 GHz using non-return-to-zero (NRZ) and 4-level pulse amplitude modulation (PAM4) formats.
The heterogeneously integrated photodiode achieved a 3-dB bandwidth of 240 GHz and an internal responsivity of 0.67 A/W.
The transmitter achieved wireless transmission data rates of 40 Gbit/s at 150 GHz and 32 Gbit/s at 200 GHz.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a817a33f2fb91fc834ade9f https://doi.org/10.1038/s41467-026-76733-8

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Implication

Experimental study demonstrates a chip-scale photonic terahertz transmitter combining III-V photodiodes with thin-film lithium niobate, indicating scalable high-speed wireless interconnects.

Heterogeneously integrated photonic terahertz transmitter on thin-film lithium niobate

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Implication

Key Points

Cite This Study

Heterogeneously integrated photonic terahertz transmitter on thin-film lithium niobate

Discussion

Member takes

Implication

Key Points

Cite This Study

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