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Updated: May 24, 2025

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

一个互补的金属氧化物半导体 (CMOS) 模拟光电子接收器,用于短距离光检测和测距 (LiDAR) 系统的数字切片器

Yunji Song^1,2, Sung-Min Park^1,2

¹Division of Electronic & Semiconductor Engineering, Ewha Womans University, Seoul 03760, Republic of Korea.

|March 6, 2025

概括

本研究介绍了一种用于LiDAR的模拟差分光电子接收器 (ADOR),采用集成的模拟雪崩光二极管 (APD) 来实现卓越的噪声排斥,并实现2Gb/s的数据速率.

科学领域:

光电学是指光电子产品.
集成电路集成电路
激光雷达系统LiDAR系统

背景情况:

短程激光雷达系统需要高性能光电子接收器.
传统的接收器面临的挑战是常态噪声和带宽限制.

研究的目的:

引入一个模拟差分光电子接收器 (ADOR),具有增强的常态噪声排斥和高数据速率 LiDAR 功能.
将关键组件集成到单一芯片上,以提高效率和减少足迹.

主要方法:

使用180nmCMOS工艺设计和制造一个ADOR.
集成一个空间调节的P+/N-well在芯片上的雪崩光二极管 (APD) 和一个模拟APD.
整合了一个交叉合的微分传 impedance 放大器 (CCD-TIA),连续时间线性等效器 (CTLE),限制放大器 (LA) 和双数字切片器.

主要成果:

证明了20dB的动态范围 (100μA_pp到1mA_pp).
实现了2 Gb/s的数据速率,具有490 fF APD电容.
与传统的单端TIA相比,表现出更好的常态噪声排斥.
报告的低功耗 (22.7mW) 来自1.8V电源.

结论:

拟议的ADOR通过差异设计和模拟APD集成有效地增强了常态噪声排斥.
集成的接收器架构支持高数据速率和宽带宽,这对于先进的LiDAR应用至关重要.
制造出来的芯片证明了对高效和紧的短距离LiDAR系统的有希望的解决方案.

关键词:

在APD中,使用的是APD.这就是CTLECTLE.拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉这就是TIA.这是一个差异差异的差异.在光电子电子系统中,光电这是一台切片机.

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