An on-chip integrated microfiber–silicon–graphene hybrid structure photodetector. (12th November 2021)

• Record Type: Journal Article
• Authors: Wang, Fangjie; Chen, Xiaoxu; Zhou, Sikun; Gu, Qiongqiong; Zhou, Hao; Deng, Guoliang; Zhou, Shouhuan
• Is Part Of: Laser physics. Volume 31:Number 12(2021)
• Publication Date: 2021-11-12
• Subjects: graphene -- silicon photonics -- photodetectors -- microfiber; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/ac3245
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: Silicon photonic devices have great potential for photocommunication, and silicon-based photodetectors have attracted wide attention. Here, we report an on-chip integrated microfiber–silicon–graphene hybrid structure photodetector that can operate in the visible and near-infrared ranges. The detector has a responsivity of ∼136 mA W −1 at 808 nm and a rise time of ∼1.1 μ s. At a reverse bias of 5 V, we achieved a responsivity of ∼1350 mA W −1 . Our device provides an option for on-chip integration.