Design of single-dual channel conversion filter based on one-dimensional photonic crystal

被引：1

作者：

Ren, HuiZhi ^{[1
,2
]}

Zhao, XiaoDan ^{[1
,2
]}

Wu, Min ^{[1
,2
]}

Fei, HongMing ^{[1
,2
]}

Zhang, MingDa ^{[1
,2
]}

Yang, Lingzhen ^{[1
,2
]}

Yang, YiBiao ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Dept Phys & Optoelect, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Sys, Minist Educ, Taiyuan 030024, Peoples R China

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2022年 / 147卷

基金：

中国国家自然科学基金;

关键词：

Photonic crystal; Narrow-band filter; Optical communication band; Single-dual channel conversion; TUNABLE FILTER; FIBER; ROADM;

D O I：

10.1016/j.mssp.2022.106697

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：

This study proposes a quantum well photonic crystal to realize a single-dual channel conversion filter in the optical communication band, which aggregates dual-channel into single-channel by reducing the coupling strength between the air defect modes. When the photonic crystal structure with defect mode is symmetric, there is a single channel in the forbidden bandgap due to the disappearance of coupling between the two channels and the transmittance is up to 100%. The coupling coefficient a is inversely proportional to the period number M. When M is greater than the threshold-2N, the transmittance of the channel gradually decreases as M increases, correspondingly. The proposed filter can be applied in wavelength division multiplexing to increase the network capacity.

引用

页数：7

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