Scholarlink

<p>This paper presents a 4 × 2 plasmonic encoder with a high extinction ratio and low crosstalk for use in photonic integrated circuits. The waveguides comprise SiO<sub>2</sub> dielectrics sandwiched within a thick silver layer, forming metal–insulator-metal (MIM) plasmonic waveguides. In the design procedure, a 3-dB coupler is designed using the coupled mode theory (CMT) and simulated by the finite-difference time-domain (FDTD) method. The proposed encoder shows a minimum extinction ratio (<i>ER</i><sub><i>min</i></sub>) of 6.28 dB and low crosstalk (<i>CT</i>) of -7.13 dB at a wavelength of 1.55 μm. The total area of the encoder is 14.4 <i>μ</i>m<sup>2</sup>, which confirms its compact footprint and suitability for use in on-chip applications.</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

Design of All-Optical 4 × 2 Encoder Based on Coupled Metal–Insulator-Metal Plasmonic Waveguides

  • 期刊论文

  • 发表日期：

    2025年4月23日

查看全文
  • Monireh-Sadat Miri,
  • Abbas Ghadimi,
  • Behrouz Heidari,
  • Maryam Khoddam

摘要

This paper presents a 4 × 2 plasmonic encoder with a high extinction ratio and low crosstalk for use in photonic integrated circuits. The waveguides comprise SiO2 dielectrics sandwiched within a thick silver layer, forming metal–insulator-metal (MIM) plasmonic waveguides. In the design procedure, a 3-dB coupler is designed using the coupled mode theory (CMT) and simulated by the finite-difference time-domain (FDTD) method. The proposed encoder shows a minimum extinction ratio (ERmin) of 6.28 dB and low crosstalk (CT) of -7.13 dB at a wavelength of 1.55 μm. The total area of the encoder is 14.4 μm2, which confirms its compact footprint and suitability for use in on-chip applications.