使用弗朗茨-凯尔迪什效应的O波段膜光探测器与InGaAsP-批量吸收核心
Optics express
|January 29, 2025
概括
我们开发了一种用于光子学的新型O波段膜光探测器 (PD),实现超过67GHz的带宽和0.6A/W的响应速度,用于高速光学收发器.
科学领域:
- 光学和光电子学和光电子学.
- 材料科学与工程 材料科学与工程
- 集成光学 集成光学 集成光学
背景情况:
- 对于用于短距离光纤链路的紧型,低功耗光学收发器的需求日益增加.
- 波导集成光探测器 (PD) 对Si光子平台至关重要.
- 现有的PD设计由于光载体扩散而面临运行速度的限制.
研究的目的:
- 制造一种适合与Si光子集成的O波段膜PD.
- 通过利用弗朗茨-凯尔迪什效应 (FKE) 来提高PD操作速度和响应能力.
- 为了证明100Gbit/s光通信的高性能PD.
主要方法:
- 在Si光子平台上制造一个InGaAsP-批量吸收核心膜PD与侧面p-i-n连接.
- 设计吸收核心的带隙波长比操作波长短,以利用FKE.
- PD与SiOx波导的异质整合.
主要成果:
- 经过验证,FKE通过增强未添加剂的核心中的吸收来增加光电流.
- 由于波长脱调,观察到光电子 (OE) 带宽的增加.
- 实现了0.6A/W的光纤对PD响应,并且带宽超过67GHz.
- 对于25°C的100Gbit/s非返回零 (NRZ) 信号,已证明有明确的眼睛开口.
结论:
- 开发的膜PD有效地克服了使用FKE和波长解调的速度限制.
- 该设备非常适合集成到高级光学收发器的Si光子平台中.
- 高性能表明未来高速短距离光通信系统的潜力.
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