上海交通大学 微纳电子学系,上海,200240
纸质出版:2020
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刘永超, 纪鹏飞, 何卫锋. 一种低损耗硅基MZ电光调制器的驱动电极设计[J]. 微电子学与计算机, 2020, 37(10): 13-17.
LIU Yong-chao, JI peng-fei, HE Wei-feng. Design of low-loss silicon MZ electro-optic modulator driving electrodes[J]. 2020, 37(10): 13-17.
为了满足高数据带宽的硅光互联应用要求,高速硅光调制器的设计至关重要.本文基于IMEC的硅光子SOI工艺,提出了一种低损耗高带宽的行波MZ调制器的驱动电极.在详细分析了趋肤效应、行波损耗、邻近效应等物理效应对行波电极信号完整性的影响的基础上,通过在行波电极上增加一定宽度的顶层金属的方法,使MZ调制器的低频损耗降低了13%,高频损耗降低了5%,并使电光调制3 dB带宽提高至28 GHz.
In order to meet the requirements of silicon optical interconnect applications with high data bandwidths
the designofhigh-speed silicon optical modulators is of vital importance. Based on the silicon photonic SOI process of IMEC
a driving electrode for a low-loss and high-bandwidth traveling wave MZ modulator is proposed. Based on a detailed analysis of the effects of skin effects
traveling wave loss
proximity effects and other physical effects on the traveling wave electrode signal
a small amount of metal with a certain width is added to the top of traveling wave electrode
which leads to the low-frequency loss of MZ modulator decreasing by 13% and the high-frequency lossdecreasing by 5%. Additionally
the 3dB bandwidth of MZ modulator is enhanced to 28GHz.
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