5 Gbps 0.35-/spl mu/m CMOS driver for laser diode or optical modulator

Lianming Li, Ting Huang, Jun Feng, Zhigong Wang, Mingzhen Xiong
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引用次数: 2

Abstract

This paper presents a versatile driver for laser diode or optical modulator using a 0.35-/spl mu/m CMOS process. In this driver, a quasi push-pull source follower is introduced. Combined with a dynamic amplification technique, the driver's slew rate and output voltage swing are increased; meanwhile the overshoot is efficiently reduced. The driver works well at 2.5 Gbps under 3.3 V and 5 V supply voltage, consuming typical power of 310 mW and 945 mW respectively. It can give a modulation voltage (with 50-/spl Omega/ load) ranging from 0.55 V/sub P-P/ to 4.2 V/sub P-P/ under 3.3 V supply voltage and 0.6 V/sub p-p/ to 6.2 V/sub P-P/ under 5 V supply voltage, therefore it can be used as a laser diode or optical modulator driver. When the driver was tested with a LiNbO/sub 3/ modulator, clear optical eye diagrams were measured at 2.5 Gbps and 5 Gbps, respectively. The die area is 0.57 mm/sup 2/.
用于激光二极管或光调制器的5gbps 0.35-/spl mu/m CMOS驱动器
本文提出了一种采用0.35-/spl μ m CMOS工艺的激光二极管或光调制器通用驱动器。在该驱动器中,引入了一个准推挽源从动器。结合动态放大技术,提高了驱动器的摆幅率和输出电压摆幅;同时有效地减小了超调量。该驱动器在3.3 V和5 V供电电压下工作在2.5 Gbps下,分别消耗310 mW和945 mW的典型功率。在3.3 V供电电压下,它可以提供0.55 V/sub P-P/至4.2 V/sub P-P/的调制电压(50-/spl ω /负载),在5 V供电电压下,它可以提供0.6 V/sub P-P/至6.2 V/sub P-P/的调制电压,因此它可以用作激光二极管或光调制器驱动器。当使用LiNbO/sub 3/调制器对驱动器进行测试时,分别以2.5 Gbps和5 Gbps的速度测量了清晰的光学眼图。模具面积0.57 mm/sup 2/。
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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