石墨烯
材料科学
光电子学
光子晶体
宽带
调制(音乐)
光子学
光调制器
化学气相沉积
光学
纳米技术
相位调制
物理
声学
相位噪声
作者
Ke Chen,Xu Zhou,Xu Cheng,Ruixi Qiao,Yi Cheng,Can Liu,Yadian Xie,Wentao Yu,Fang Yao,Zhipei Sun,Feng Wang,Kaihui Liu,Zhongfan Liu
出处
期刊:Nature Photonics
[Springer Nature]
日期:2019-08-12
卷期号:13 (11): 754-759
被引量:126
标识
DOI:10.1038/s41566-019-0492-5
摘要
The integration of photonic crystal fibre (PCF) with various functional materials has greatly expanded the application regimes of optical fibre1–12. The emergence of graphene (Gr) has stimulated new opportunities when combined with PCF, allowing for electrical tunability, a broadband optical response and all-fibre integration ability13–18. However, previous demonstrations have typically been limited to micrometre-sized samples, far behind the requirements of real applications at the metre-scale level. Here, we demonstrate a new hybrid material, Gr–PCF, with length up to half a metre, produced using a chemical vapour deposition method. The Gr–PCF shows a strong light–matter interaction with ~8 dB cm−1 attenuation. In addition, the Gr–PCF-based electro-optic modulator demonstrates a broadband response (1,150–1,600 nm) and large modulation depth (~20 dB cm−1 at 1,550 nm) under a low gate voltage of ~2 V. Our results could enable industrial-level graphene applications based on this Gr–PCF and suggest an attractive platform for two-dimensional material-PCF. A hybrid material based on uniform graphene on both the outer surface and inner hole walls of a photonic crystal fibre offers a strong, tunable light–matter interaction and good broadband electro-optic modulation performance under low gate voltage.
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