中国物理B ›› 2026, Vol. 35 ›› Issue (7): 78401-078401.doi: 10.1088/1674-1056/ae0b3b

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Tunable Bragg filter based on polymer/silica hybrid waveguide platform

Xinyuan Zhang(张鑫源)1, Daming Zhang(张大明)1, Xinjian Zhang(张鑫健)1, Guoyan Zeng(曾国宴)1, and Yuexin Yin(尹悦鑫)1,2,†   

  1. 1 State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
    2 Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen Kasuga, Fukuoka 816-8580, Japan
  • 收稿日期:2025-08-04 修回日期:2025-09-18 接受日期:2025-09-25 发布日期:2026-07-07
  • 通讯作者: Yuexin Yin E-mail:yxyin@jlu.edu.cn
  • 基金资助:
    This work was supported by the National Key Research and Development Program of China (Grant No. 2024YFE0211800).

Tunable Bragg filter based on polymer/silica hybrid waveguide platform

Xinyuan Zhang(张鑫源)1, Daming Zhang(张大明)1, Xinjian Zhang(张鑫健)1, Guoyan Zeng(曾国宴)1, and Yuexin Yin(尹悦鑫)1,2,†   

  1. 1 State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
    2 Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen Kasuga, Fukuoka 816-8580, Japan
  • Received:2025-08-04 Revised:2025-09-18 Accepted:2025-09-25 Published:2026-07-07
  • Contact: Yuexin Yin E-mail:yxyin@jlu.edu.cn
  • Supported by:
    This work was supported by the National Key Research and Development Program of China (Grant No. 2024YFE0211800).

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摘要： Owing to its compact footprint and superior filter properties, the Bragg grating filter is attractive for applications in optical communications. In this research, we conducted a detailed analysis of the influence of Bragg grating parameters on its functionality and experimentally validated our findings on a simple and low-cost polymer/silica hybrid waveguide platform. The best extinction ratio of 26.3 dB is obtained when the period is 6.63 μm and the number of periods is 200. The full width at half maximum of the grating is 0.35 nm at 1544.74 nm. Tuning efficiency reaches 29.6 pm/mW owing to the high thermo-optical efficiency of the polymer. Finally, we measure the rise and fall times of the grating to be 280 μs. The proposed grating shows great potential in flexible and reconfigurable optical networks.

关键词: waveguide, polymer, filter, integrated optics

Abstract: Owing to its compact footprint and superior filter properties, the Bragg grating filter is attractive for applications in optical communications. In this research, we conducted a detailed analysis of the influence of Bragg grating parameters on its functionality and experimentally validated our findings on a simple and low-cost polymer/silica hybrid waveguide platform. The best extinction ratio of 26.3 dB is obtained when the period is 6.63 μm and the number of periods is 200. The full width at half maximum of the grating is 0.35 nm at 1544.74 nm. Tuning efficiency reaches 29.6 pm/mW owing to the high thermo-optical efficiency of the polymer. Finally, we measure the rise and fall times of the grating to be 280 μs. The proposed grating shows great potential in flexible and reconfigurable optical networks.

Key words: waveguide, polymer, filter, integrated optics

中图分类号:  (Waveguides, transmission lines, striplines)

  • 84.40.Az
84.30.Vn (Filters) 42.82.-m (Integrated optics) 42.82.Ds (Interconnects, including holographic interconnects)