Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics

Yuying Wang; Lijing Zhong; Kuen Yao Lau; Xuhu Han; Yi Yang; Jiacheng Hu; Sergei Firstov; Zhi Chen; Zhijun Ma; Limin Tong; Kin Seng Chiang; Dezhi Tan; Jianrong Qiu

doi:10.1038/s41377-024-01473-7

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Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics

Original Articles

- Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics
- Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics
- LSA 2024年13卷第6期页码：1186-1195
- Affiliations：
  
  1.College of Optical Science and Engineering, Zhejiang University, 310027 Hangzhou, China
  2.Institute of Light+X Science and Technology, College of Information Science and Engineering, Ningbo University, 315211 Ningbo, China
  3.School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 215006 Suzhou, China
  4.Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov str., Moscow 119333, Russia
  5.Zhejiang Lab, 311121 Hangzhou, China
  6.College of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, 650093 Kunming, Yunnan, China
  7.Department of Electrical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
  8.School of Materials Science and Engineering, Zhejiang University, 310027 Hangzhou, China
- Author bio：
  
  Lijing Zhong (zhonglijing@nbu.edu.cn)
  Zhi Chen (zhichen@zhejianglab.edu.cn)
  Zhijun Ma (zhijma@zhejianglab.com)
  Dezhi Tan (wctdz@zju.edu.cn)
  Jianrong Qiu (qjr@zju.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01473-7
  中图分类号：
- 收稿日期：2023-10-24，
  
  修回日期：2024-04-25，
  
  录用日期：2024-05-08，
  
  网络出版日期：2024-06-04，
  
  纸质出版日期：2024-06-30
- Accepted：
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Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics[J]. LSA, 2024,13(6):1186-1195.

Wang, Y. Y. et al. Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics.,Light: Science & Applications, 13, 1186-1195 (2024).
Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics[J]. LSA, 2024,13(6):1186-1195. DOI： 10.1038/s41377-024-01473-7.

Wang, Y. Y. et al. Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics.,Light: Science & Applications, 13, 1186-1195 (2024). DOI： 10.1038/s41377-024-01473-7.

摘要

Abstract

Three-dimensional (3D) glass chips are promising waveguide platforms for building hybrid 3D photonic circuits due to their 3D topological capabilities

large transparent windows

and low coupling dispersion. At present

the key challenge in scaling down a benchtop optical system to a glass chip is the lack of precise methods for controlling the mode field and optical coupling of 3D waveguide circuits. Here

we propose an overlap-controlled multi-scan (OCMS) method based on laser-direct lithography that allows customizing the refractive index profile of 3D waveguides with high spatial precision in a variety of glasses. On the basis of this method

we achieve variable mode-field distribution

robust and broadband coupling

and thereby demonstrate dispersionless LP

-mode conversion of supercontinuum pulses with the largest deviation of

0.1 dB in coupling ratios on 210 nm broadband. This approach provides a route to achieve ultra-broadband and low-dispersion coupling in 3D photonic circuits

with overwhelming advantages over conventional planar waveguide-optic platforms for on-chip transmission and manipulation of ultrashort laser pulses and broadband supercontinuum.

关键词

Keywords

references

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