32Gb/s-NRZ, 15GBaud/s-PAM4 DFB激光驱动器，65nm CMOS有源后端

2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) Pub Date : 2017-06-01 DOI:10.1109/RFIC.2017.7969068

Bozhi Yin, Nan Qi, Jingbo Shi, Xi Xiao, Daigao Chen, Miaofeng Li, Zhiyong Li, Jiangbing Du, Zuyuan He, Rui Bai, Yi Wang, Jun Zheng, Fred Chang, Huanlin Zhang, P. Chiang

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引用次数: 1

摘要

提出了一种32Gb/s-NRZ, 15GBaud/s-PAM4可配置的DFB激光二极管驱动器(LDD)。该驱动器采用平衡输入、单端输出拓扑结构来提供大电流输出，并集成了可调的预强调以扩展带宽。提出了一种在不牺牲有效调制电流的情况下吸收负载反射的片上有源后端(ABT)。直接线接DFB激光芯片，测量结果显示25.78Gb/s NRZ光学眼图，消光比4dB，眼罩余量19.3%，参考100G规格。LDD提供60mA偏置和60mApp调制电流，仅消耗550mW功耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A 32Gb/s-NRZ, 15GBaud/s-PAM4 DFB laser driver with active back-termination in 65nm CMOS

A 32Gb/s-NRZ, 15GBaud/s-PAM4 configurable DFB Laser Diode Driver (LDD) is presented in standard 65nm CMOS. The driver employs a balanced-input, single-ended-output topology to deliver large current output, and integrates a tunable pre-emphasis to extend the bandwidth. An on-chip active back-termination (ABT) is proposed which absorbs loading reflections without sacrificing the effective modulation current. Directly wire-bonded to a DFB laser chip, the measurement results show 25.78Gb/s NRZ optical eye-diagram with 4dB Extinction Ratio (ER) and a 19.3% eye-mask margin referred to the 100G specification. The LDD delivers 60mA bias and 60mApp modulation current, consuming only 550mW power consumption.

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来源期刊

2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

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