Scholarlink

<p>Nonreciprocal all-optical diodes have attracted great interest for the function of light forward transmission and backward cut-off. In this paper, we present an efficient design for multi-channel photonic crystal (PC) diodes based on nonlinear Fano resonances. By optimizing the structural parameters of the asymmetric PC structure, a dual-channel PC diode is achieved at the working wavelengths of 1519.67 nm and 1533.59 nm, with the wavelength spacing of about 14 nm. The nonreciprocal transmission contrasts are 0.993 and 0.988, respectively. Moreover, by introducing an elliptical nonlinear Fano cavity, a tri-channel PC diode with ultra-small wavelength interval is realized at the working wavelengths of 1533.64 nm, 1533.97 nm and 1534.21 nm. Therefore, dynamic manipulation of multi-channel nonreciprocal unidirectional transmission becomes feasible. Our multi-channel PC diodes are compact and can be applied in high-density photonic integrated circuits.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Multi-channel photonic crystal diodes based on nonlinear Fano resonances

  • 期刊论文

  • 发表日期：

    2025年6月20日

查看全文
  • Longpan Wang,
  • Dezhong Sun,
  • Shuangshuang Li,
  • Changxue Xu,
  • Lingxin Kong,
  • Dezhong Cao,
  • Chong Wang,
  • Shuai Feng,
  • Feng Kang,
  • Cheng Ren

摘要

Nonreciprocal all-optical diodes have attracted great interest for the function of light forward transmission and backward cut-off. In this paper, we present an efficient design for multi-channel photonic crystal (PC) diodes based on nonlinear Fano resonances. By optimizing the structural parameters of the asymmetric PC structure, a dual-channel PC diode is achieved at the working wavelengths of 1519.67 nm and 1533.59 nm, with the wavelength spacing of about 14 nm. The nonreciprocal transmission contrasts are 0.993 and 0.988, respectively. Moreover, by introducing an elliptical nonlinear Fano cavity, a tri-channel PC diode with ultra-small wavelength interval is realized at the working wavelengths of 1533.64 nm, 1533.97 nm and 1534.21 nm. Therefore, dynamic manipulation of multi-channel nonreciprocal unidirectional transmission becomes feasible. Our multi-channel PC diodes are compact and can be applied in high-density photonic integrated circuits.