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Mid-infrared electro-optic modulator based on a graphene-embedded plasmonic rib waveguide with ultrahigh electro-optic wavelength tuning

机译：基于石墨烯嵌入式等离子体肋波导的中红外电光调制器，具有超高电光波长调谐

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摘要

A graphene-embedded plasmonic rib waveguide (GEPRW) is designed for the mid-infrared electro-optic modulator. The mode characteristics and electro-optic (EO) modulation performances are simulated and optimized by using the finite element method. The results show that propagation length of 10(3) mm and figure of merit of 10(6) are obtained by adjusting the bias voltage applied to the GEPRW. The EO wavelength tunings are -66.69 and -78.87 nm/V for peak L and peak R in the loss spectra when w = 3 mu m and b(1) = 2 mu m. For a 100 mu m long GEPRW, the modulation depths of similar to 96.4, similar to 97.1, similar to 93.7, and similar to 94.9%, and FWHMs of similar to 30, similar to 74, similar to 34, and similar to 59 nm can be achieved when lambda = 1.55, 1.87, 1.89, and 2.23 mu m. The EO modulator based on the GEPRW has a wide wavelength tuning range from 1.05 to 2.23 gm. It has high modulation depth, low insertion loss, and broad bandwidth, which can be used as EO tunable devices such as optical interconnects and optical switches. (C) 2021 Optical Society of America
机译：设计了一种用于中红外电光调制器的石墨烯嵌入等离子体脊波导（GEPRW）。利用有限元方法对其模式特性和电光调制性能进行了仿真和优化。结果表明，通过调整施加在GEPRW上的偏置电压，可以获得10（3）mm的传输长度和10（6）的优值。当w=3μm且b（1）=2μm时，损耗谱中的峰值L和峰值R的EO波长调谐分别为-66.69和-78.87 nm/V。对于100μm长的GEPRW，当λ=1.55、1.87、1.89时，可实现类似于96.4、类似于97.1、类似于93.7和类似于94.9%的调制深度，以及类似于30、类似于74、类似于34和类似于59 nm的FWHMs，基于GEPRW的电光调制器具有1.05到2.23gm的宽波长调谐范围。它具有高调制深度、低插入损耗和宽带宽，可用于光互连和光开关等电光可调谐器件。（2021）美国光学学会

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  • 来源
    《Applied optics》 |2021年第10期|共8页
  • 作者

    Hou Chenyang; Ma Tao; Gao Jinhui; Liu Heng; Wang Fang;

  • 作者单位

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

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