在220 GHz以上,具有增强响应性的 evanescently 合的 MUTC-PD
Optics express
|August 13, 2025
概括
我们开发了新的波导修改的单一旅行载波光二极管 (MUTC-PDs),实现超宽带宽和高响应性. 这些MUTC-PD显示出用于高速光通信的出色性能.
科学领域:
- 光电学是指光电子产品.
- 半导体设备 半导体设备
- 光子学 是一个光子学.
背景情况:
- 高速光探测器对于现代光通信系统至关重要.
- 现有的光电探测器经常面临带宽和响应能力之间的权衡.
- 单行程载体光二极管 (UTC-PD) 提供了高速操作的潜力.
研究的目的:
- 为了呈现浮性合波导修改的单行运载光二极管 (MUTC-PDs).
- 为了同时实现超宽带宽和高响应性.
- 为了克服高速光探测器中传统的权衡限制.
主要方法:
- 设计了一种新的表轴结构,具有多层输入波导,以增强光吸收.
- 优化的被动化方案,芯片上匹配电阻和高阻抗共平面波导 (CPW) 电极.
- 制造的4 × 5μm2的MUTC-PDs. 这是一个很大的问题.
主要成果:
- 实现了0.56A/W的创纪录的响应能力.
- 证明了超过220 GHz的3dB带宽.
- 展示了对280 Gb/s PAM4,330 Gb/s PAM6和384 Gb/s PAM8信号的清晰眼睛开放.
结论:
- 开发的MUTC-PDs成功地克服了带宽-响应性的权衡.
- 这些光二极管适用于下一代高速光通信系统.
- 新的波导结构和优化技术有助于创纪录的性能.
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