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通过抑制电极尺寸效应来增强雪崩光二极管中光响应的线性

Hongyi Gan¹, Junwen Yu¹, Xiangfu Wang^1,2

¹College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.

Sensors (Basel, Switzerland)

|June 19, 2024

概括

雪崩光二极管 (APD) 的非线性特性限制了高速通信. 研究人员发现,减少电极大小可以通过减轻电荷积累来提高APD线性,从而提高光学探测器的性能.

科学领域:

光电学是指光电子产品.
材料科学材料科学材料科学
半导体设备半导体设备

背景情况:

雪崩光二极管 (APD) 的非线性特性阻碍了它们在高速通信系统中的使用.
当前的理论模型无法充分解释实际APD结构中的复杂现象.

研究的目的:

调查影响实际设备结构中APD线性因素.
开发一个改进的APD设计,以提高高速应用中的线性和性能.

主要方法:

使用化 (GaN) APDs进行模拟分析和物理推断.
开发一个物理模型来解释线性限制.
设计和测试一个改进的APD结构与间隙和缓冲层.

主要成果:

确定了电极大小作为影响APD响应线性的一个关键因素.
开发了一个模型,将非线性归因于接触层边缘的电荷积累.
改进的APD设计将光学输入功率的线性值提高了4.46倍.

结论:

减少电极大小是提高APD线性的一种可行的策略.
拟议的APD设计显著提高了线性,并扩大了高速光电子探测器的操作范围.
这项工作推进了APD非线性理论的理解,并提供了实际的设计改进.

关键词:

雪崩的光电二极管是如何使用的电极电极是指一个电极.二化是的二氧化.这就是线性线性.

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