A 3-D-Integrated Silicon Photonic Microring-Based 112-Gb/s PAM-4 Transmitter With Nonlinear Equalization and Thermal Control
A 3-D-Integrated Silicon Photonic Microring-Based 112-Gb/s PAM-4 Transmitter With Nonlinear Equalization and Thermal Control
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DOI：
10.1109/jssc.2020.3022851
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发表时间：
2021-01-01
影响因子：
5.4
通讯作者：
Casper, Bryan
中科院分区：
文献类型：
--
作者：
Li, Hao;Balamurugan, Ganesh;Casper, Bryan
采用CMOS电子器件的微波调制器（MRM）为400 G以太网和共同封装的光收发器提供了紧凑型低功耗发射器解决方案。在这篇文章中，我们提出了一个三维集成的112 Gb/s的脉冲幅度调制（PAM）-4光发射机（OTX）使用硅光子MRM，片上激光器，和共同封装的28 nm CMOS驱动器。3-V-pp驱动器包括基于查找表（LUT）的PAM-4非线性均衡器，以解决静态和动态MRM非线性问题。提出了一种对输入功率波动不敏感的集成热控制方法，以补偿磁流变液的温度敏感性。PAM-4测量结果表明，在112 Gb/s的OTX发射机色散眼图闭合四元（TDECQ）
Microring modulators (MRMs) with CMOS electronics enable compact low power transmitter solutions for 400G Ethernet and co-packaged optical transceivers. In this article, we present a 3-D-integrated 112-Gb/s pulse amplitude modulation (PAM)-4 optical transmitter (OTX) using silicon photonic MRM, on-chip laser, and co-packaged 28-nm CMOS driver. The 3-V-pp driver includes a lookup table (LUT)-based PAM-4 nonlinear equalizer to address static and dynamic MRM nonlinearities. An integrated thermal control method that is insensitive to input power fluctuations is proposed to compensate for the temperature sensitivity of MRMs. PAM-4 measurement results of our OTX at 112 Gb/s show that transmitter dispersion eye closure quaternary (TDECQ)