High Performance Graphene Integrated Photonics Platform Enabled by Gold-assisted Transfer
Year: 2024
Type: preprint
Abstract: Graphene is promising for nanoscale, efficient, ultra-fast photo- and opto-electronic devices because of its remarkable electrical and optical properties, such as fast electron relaxation and heat dissipation. Here, we realize high-performance graphene integrated photonics platform enabled by gold-assisted transfer. Thanks to our optimized transfer technique, we fabricate and demonstrate (1) a microscale thermo-optic modulator with a tuning efficiency of 0.037 nm/mW and high heating performance of 67.4 K$μm^{3}mW^{-1}$ on a small active area of 7.54 $μm^{2}$ and (2) a graphene electro-absorption modulator featuring an high modulation bandwidth up to 26.8 GHz and a high-speed data rate reaching 48 Gb/s, and (3) a graphene Mach-Zehnder interferometer modulator with a high normalized modulation efficiency of 0.027 dBV$^{-1}μm^{-1}$. Our graphene integrated photonics platform has far superior performances compared to state of the art in terms of efficiency, low process complexity, and compact device footage. Thus, our approach and results provide the background for the realization of high-performance integrated photonic circuits with CMOS compatibility.
Source: Figshare
Authors: Wu, Xiaoxuan, Cao, Zhengyi, Zhao, Tianxiang, Wu, Yun, Li, Zhonghui, Doukas, Spyros, Lidorikis, Elefterios, Xue, Yu, Liu, Liu, Ghaebi, Omid, Soavi, Giancarlo, Lv, Junpeng, Ni, Zhenghua, Wang, Junjia
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6948269273
Cites:
Cited by:
Related to: