Optical Instruments, Volume. 47, Issue 3, 9(2025)

Design and fabrication of asymmetric grating filter based on phase apodization modulation

Wei JIANG, Shuo YUAN, Zhiheng YU, Cunliang YANG, Wenbo REN, Xincheng XIA, Zhengjie WANG, and Jijun FENG*
Author Affiliations
  • Schoool of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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    Figures & Tables(7)
    Schematic diagram of the asymmetric waveguide grating filter
    Simulated spectra for the asymmetric waveguide grating filter
    Microscopice image of the fabricated asymmetric waveguide grating filter chip
    SEM images of the asymmetric waveguide grating filter chip
    Measured normalized spectra of asymmetric waveguide grating filter chip
    Simulated transmission spectra and electric field distribution of the sinusoidal-shaped sidewall ridge grating
    • Table 1. Performance comparison of correlation filters reported

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      Table 1. Performance comparison of correlation filters reported

      滤波器类型抑制带宽改变/nm谐振波长改变/nm消光比改变/dB年份
      基于MZI的可调滤波器[23]0.42 4 无法改变2011
      均匀光栅侧壁错位调制[24]9 无法改变5 2014
      π相移光栅调制[25]0.32 6 无法改变2022
      本文1.06 4.54 7.07
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    Wei JIANG, Shuo YUAN, Zhiheng YU, Cunliang YANG, Wenbo REN, Xincheng XIA, Zhengjie WANG, Jijun FENG. Design and fabrication of asymmetric grating filter based on phase apodization modulation[J]. Optical Instruments, 2025, 47(3): 9

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    Paper Information

    Received: Mar. 13, 2024

    Accepted: --

    Published Online: Jul. 28, 2025

    The Author Email: Jijun FENG (fjijun@usst.edu.cn)

    DOI:10.3969/j.issn.1005-5630.202403130050

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