A novel InP-based metal-coated sidewall, hybrid plasmonic multimode interference (MCS-HP-MMI) power splitter has been proposed. Based on two methods of multimode interference self-imaging and finite difference time domain simulations, a 1 × 2 MCS-HP-MMI power splitter was numerically analysed and compared with an HP-MMI power splitter with the same specifications showing 70% reduction in length due to the negative Goos-Hänchen shift in the metal-coated sidewalls of the MCS-HP-MMI power splitter. The width and layer stack specifications of the device were optimised using response surface methodology to minimise the multimode interference length and maximise the optical power transmission. The total optical power transmission of 98% was achieved for an MCS-HP-MMI width and length of 662 and 190 nm, respectively, with a wavelength of 1550 nm.

中文翻译：

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金属包覆侧壁混合等离子体多模干扰功率分配器中的Goos ??? H ?? nchen效应

提出了一种新型的基于InP的金属涂层侧壁，混合等离子体多模干扰（MCS-HP-MMI）功率分配器。基于多模干扰自成像和时域有限差分两种仿真方法，对1×2 MCS-HP-MMI功率分配器进行了数值分析，并与相同规格的HP-MMI功率分配器进行了比较，显示出长度减少了70％由于MCS-HP-MMI功率分配器的金属涂层侧壁出现了Goos-Hänchen负位移。使用响应表面方法优化了器件的宽度和叠层规格，以最小化多模干扰长度并最大化光功率传输。MCS-HP-MMI的宽度和长度分别为662和190 nm，波长为1550 nm，则实现了98％的总光功率传输。