Analysis of Tunable Flat-Top Bandpass Filters Based on Graphene

被引：17

作者：

Huang, Jie ^{[1
]}

Yang, Junbo ^{[1
,2
]}

Zhang, Hailiang ^{[1
]}

Zhang, Jingjing ^{[1
]}

Wu, Wenjun ^{[1
]}

Chang, Shengli ^{[1
]}

机构：

[1] Natl Univ Def Technol, Ctr Mat Sci, Changsha 410073, Hunan, Peoples R China

[2] Peking Univ, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 23期

关键词：

Tunable filter; graphene waveguide; microring resonators; OPTICAL WAVE-GUIDES; RESONATOR FILTERS; WDM APPLICATIONS; PHOTONIC WIRES; SILICON; COMPACT; CHIP; MULTIPLEXERS; BANDWIDTH;

D O I：

10.1109/LPT.2016.2615064

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A multilayer graphene-based tunable bandpass filter is proposed by using cascaded silicon microring resonators. Six graphene layers are embedded in the silicon-on-insulator waveguide to enhance the influence on the effective mode index, and a pretreatment has also been implemented to compensate the coupling-induced resonance frequency shifts. By tuning the Fermi level of the graphene, the position of the pass band can be dynamically modulated in the whole communication C-band. The out-of-band extinction ratio of drop port can be larger than 40 dB; the 3-dB bandwidths of the pass bands are over 2.8 nm, and the insertion loss is less than 1.5 dB.

引用

页码：2677 / 2680

页数：4

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