Versatile photonic molecule switch in multimode microresonators

Zihan Tao; Bitao Shen; Wencan Li; Luwen Xing; Haoyu Wang; Yichen Wu; Yuansheng Tao; Yan Zhou; Yandong He; Chao Peng; Haowen Shu; Xingjun Wang

doi:10.1038/s41377-024-01399-0

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Versatile photonic molecule switch in multimode microresonators

Original Articles

- Versatile photonic molecule switch in multimode microresonators
- Versatile photonic molecule switch in multimode microresonators
- LSA 2024年13卷第3期页码：498-509
- Affiliations：
  
  1.State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing 100871, China
  2.College of Engineering, Peking University, Beijing 100871, China
  3.School of Integrated Circuits, Peking University, 100871 Bejing, China
  4.Peking University Yangtze Delta Institute of Optoelectronics, Nantong 226010, China
  5.Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
  6.Peng Cheng Laboratory, Shenzhen 518055, China
- Author bio：
  
  Haowen Shu (haowenshu@pku.edu.cn)
  Xingjun Wang (xjwang@pku.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01399-0
  中图分类号：
- 收稿日期：2023-08-17，
  
  修回日期：2024-01-15，
  
  录用日期：2024-01-25，
  
  网络出版日期：2024-02-20，
  
  纸质出版日期：2024-03-31
- Accepted：
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Versatile photonic molecule switch in multimode microresonators[J]. LSA, 2024,13(3):498-509.

Tao, Z. H. et al. Versatile photonic molecule switch in multimode microresonators. Light: Science & Applications, 13, 498-509 (2024).
Versatile photonic molecule switch in multimode microresonators[J]. LSA, 2024,13(3):498-509. DOI： 10.1038/s41377-024-01399-0.

Tao, Z. H. et al. Versatile photonic molecule switch in multimode microresonators. Light: Science & Applications, 13, 498-509 (2024). DOI： 10.1038/s41377-024-01399-0.

摘要

Abstract

Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental optical phenomena analogous to atomic physics. Previously

the distinct energy levels and interactions in such two-level systems were provided by coupled microresonators. The reconfigurability is limited

as they often require delicate external field stimuli or mechanically altering the geometric factors. These highly specific approaches also limit potential applications. Here

we propose a versatile on-chip photonic molecule in a multimode microring

utilizing a flexible regulation methodology to dynamically control the existence and interaction strength of spatial modes. The transition between single/multi-mode states enables the "switched-off/on" functionality of the photonic molecule

supporting wider generalized applications scenarios. In particular

"switched-on" state shows flexible and multidimensional mode splitting control in aspects of both coupling strength and phase difference

equivalent to the a.c. and d.c. Stark effect. "Switched-off" state allows for perfect low-loss single-mode transition (Q

~ 10 million) under an ultra-compact bend size (FSR ~ 115 GHz) in a foundry-based silicon microring. It breaks the stereotyped image of the FSR-Q factor trade-off

enabling ultra-wideband and high-resolution millimeter-wave photonic operations. Our dem

onstration provides a flexible and portable solution for the integrated photonic molecule system

extending its research scope from fundamental physics to real-world applications such as nonlinear optical signal processing and sixth-generation wireless communication.

关键词

Keywords

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