经过修改的单一旅行载体光探测器及其优化的悬崖层.
1State Key Laboratory of Information Photonics and Optical Communications, School of Electrical and Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
我们通过调整悬崖层厚度来优化MUTC-PD设计,以提高电场分布. 这种MUTC-PD设计实现了同时实现高速和高功率的性能,这对于先进的光电子应用至关重要.
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
- 电气工程 电气工程
背景情况:
- 高速和高功率的光检测对于现代通信和传感系统至关重要.
- 现有的光电探测器设计经常面临速度和功率处理能力之间的权衡.
- 光探测器内的电场管理对其性能特征产生重大影响.
研究的目的:
- 为了设计和模拟一个新的光探测器,MUTC-PD (单立体超快速旅行载体光探测器),以优化性能.
- 为了研究悬崖层厚度对电场分布和光载体动态的影响.
- 为了在一个单一的光电探测器设备中实现同时的高速和高功率响应.
主要方法:
- 用不同的悬崖层厚度设计和模拟MUTC-PD的设备设计.
- 在增加光功率下分析电场预扭曲和电子速度和.
- 差电容的表征及其与设备带宽的关系.
- 在不同配置下模拟3dB带宽和和RF输出功率.
主要成果:
- 在16μm的MUTC-PD中,一个优化的70nm悬崖层显著抑制了电场崩.
- 模拟显示最大3dB带宽为137GHz在-5V,这与30nm悬崖层的64GHz设备相比是显著的改进.
- 该设备在60 GHz时实现了27.4dBm的和射频输出功率,表明了出色的高功率处理.
结论:
- 优化的MUTC-PD设计通过管理电场动态有效地提高了电子速度和设备带宽.
- MUTC-PD展示了一个有前途的途径,可以实现同时实现高速和高功率的光检测.
- 这种设计为需要卓越光电子性能的应用提供了显著的进步.
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