A 28-nm CMOS EML Driver for 50G-PON Applications

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-06-24 DOI:10.1109/LPT.2025.3582785

Ruixuan Yang;Yiming Dang;Yifei Xia;Cailing Li;Donghe Tu;Zhiyong Li;Li Geng;Dan Li

引用次数: 0

Abstract

Targeting the low-cost demands of 50G PON infrastructure, a 28-nm CMOS EML driver is presented. A novel DC-guarded-stack (DG-Stack) output stage is proposed to solve the inconsistency between low and high frequency steady state for improved robustness. An overlapped concentric T-Coil (OC-T-Coil) is designed to enhance bandwidth with half the area. The laser and SOA bias circuits are also integrated to reduce system cost. With low power consumption of 373 mW in a compact 0.586-mm2 die area, this design achieves a 50-Gbps NRZ modulation with 2-Vpp single-ended output swing and 7-dB extinction ratio, delivering >11-dBm average launch power.

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50G-PON应用的28纳米CMOS EML驱动

针对50G PON基础架构的低成本需求，提出了一种28纳米CMOS EML驱动器。提出了一种新的直流保护堆栈（DG-Stack）输出级，解决了低频和高频稳态不一致的问题，提高了鲁棒性。一个重叠的同心t型线圈（oc - t型线圈）的设计，以提高带宽的一半面积。为了降低系统成本，还集成了激光和SOA偏置电路。该设计在紧凑的0.586 mm2芯片面积下实现了373 mW的低功耗，实现了50 gbps的NRZ调制，单端输出摆幅为2 vpp，消光比为7 db，平均发射功率为11 dbm。

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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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.