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Inverse design of multi-band and wideband waveguide crossings

机译:多频段和宽带波导交叉的逆设计

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摘要

Photonic integrated circuits for wideband and multi-band optical communications will need waveguide crossings that operate at all the wavelengths required by the system. In this Letter, we use the modified gradient decedent method to optimize the dual-wavelength band (DWB) crossings on both single- and double-level platforms. On the single-level platform, the simulation results show insertion losses (as) less than 0.07 and 0.11 dB for a crossing working at a DWB of 1.5-1.6 and 1.95-2.05 mu m. ILs are less than 0.1 and 0.2 dB for a crossing operating in the DWB of 1.5-1.6 and 2.2-2.3 mu m. On the double-layer platform, the simulated results show H. less than 0.08 dB across the wavelength range of 1.25-2.25 mu m. We experimentally demonstrate the DWB crossing operating at 1.5-1.6 and 2.2-2.3 mu m to have IL less than 0.3 and 0.4 dB and crosstalk of -28 and -26 dB in the two bands, respectively. (C) 2021 Optical Society of America
机译:用于宽带和多波段光通信的光子集成电路将需要在系统所需的所有波长下工作的波导交叉。在这封信中,我们使用改进的梯度下降法来优化单能级和双能级平台上的双波长波段(DWB)交叉。在单层平台上,模拟结果显示,对于在1.5-1.6和1.95-2.05μm DWB下工作的交叉口,插入损耗(as)分别小于0.07和0.11 dB。对于在1.5-1.6和2.2-2.3μm DWB下工作的交叉口,ILs分别小于0.1和0.2 dB。在双层平台上,模拟结果显示,在1.25-2.25μm的波长范围内,H小于0.08 dB。我们通过实验证明,在1.5-1.6和2.2-2.3μm的波长范围内工作的DWB交叉,IL分别小于0.3和0.4 dB,两个波段的串扰分别为-28和-26 dB。(2021)美国光学学会

著录项

  • 来源
    《Optics Letters》 |2021年第4期|共4页
  • 作者单位

    Chinese Univ Hong Kong Dept Elect Engn Shatin Hong Kong Peoples R China;

    Chinese Univ Hong Kong Dept Elect Engn Shatin Hong Kong Peoples R China;

    Chinese Univ Hong Kong Dept Elect Engn Shatin Hong Kong Peoples R China;

    Chinese Univ Hong Kong Dept Elect Engn Shatin Hong Kong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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