V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator

Rui Ma; Zijun Huang; X. Steve Yao; Peng Hao; Wei Ke; Xinlun Cai

doi:10.1038/s41377-025-01988-7

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V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator

Original Articles

- V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator
- V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator
- Light: Science & Applications 2025年14卷第12期页码：4204-4213
- Affiliations：
  
  1.State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China
  2.Photonics Information Innovation Center and Hebei Provincial Center for Optical Sensing Innovations, College of Physics Science and Technology, Hebei University, Baoding 071002, China
  3.NuVison Photonics, Inc., Las Vegas, NV 89109, USA
  4.Hefei National Laboratory, Hefei 230088, China
- Author bio：
  
  X. Steve Yao (syao@ieee.org)
  Peng Hao (haopeng@hbu.edu.cn)
  Xinlun Cai (caixlun5@mail.sysu.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01988-7
  中图分类号：
- 收稿：2024-12-06，
  
  修回：2025-06-25，
  
  录用：2025-07-25，
  
  网络出版：2025-12-11，
  
  纸质出版：2025-12-31
- Accepted：
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Rui Ma, Zijun Huang, X. Steve Yao, 等. V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator[J]. Light: Science & Applications, 2025,14(12):4204-4213.

Ma, R. et al. V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator. Light: Science & Applications, 14, 4204-4213 (2025).
Rui Ma, Zijun Huang, X. Steve Yao, 等. V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator[J]. Light: Science & Applications, 2025,14(12):4204-4213. DOI： 10.1038/s41377-025-01988-7.

Ma, R. et al. V-band ultra-fast tunable thin-film lithium niobate Fourier-domain mode-locked optoelectronic oscillator. Light: Science & Applications, 14, 4204-4213 (2025). DOI： 10.1038/s41377-025-01988-7.

摘要

Abstract

We demonstrate the first Fourier-domain mode-locked optoelectronic oscillator (FDML OEO) fabricated on the thin-film lithium niobate (TFLN) platform

deploying an electrically tuned ultra-fast frequency-scanning filter

thanks to the high-speed Pockels effect in TFLN. Record-breaking high radiofrequency oscillations up to 65 GHz are achieved

with a phase noise more than 14 dB less at 50 GHz than that of a high-performance commercial signal source at an offset frequency of 10 kHz away from the carrier. A linearly chirped microwave waveform with an unprecedented scanning bandwidth of 30 GHz

corresponding to an impressive chirp rate of 5.7 GHz/μs and a large time-bandwidth product of 159054

is successfully generated by the FDML OEO. These results validate the feasibility of utilizing TFLN to fabricate integrated FDML OEOs capable of delivering ultra-wide scanning bandwidth at chirp rates and frequencies not attainable with any other approaches to date.

关键词

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references

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