Journal article
High-efficiency tunable T-shaped beam splitter based on one-way waveguide
Neural Devices & Gas Photonics, Department of Electrical and Photonics Engineering, Technical University of Denmark1
Department of Electrical and Photonics Engineering, Technical University of Denmark2
Department of Photonics Engineering, Technical University of Denmark3
Structured Electromagnetic Materials, Department of Photonics Engineering, Technical University of Denmark4
Nanchang University5
Wuhu Institute of Technology6
Zhejiang University of Technology7
Power splitters have been widely studied in the fields of radio frequency and integrated photonics, however, conventional splitters generally suffer from poor transmission and limited bandwidth. Here we propose a novel tunable T-shaped power splitter utilizing one-way waveguide that is composed by the yttrium–iron–garnet–air–metal configuration with one static magnetic field applied.
We show that the transmission efficiency of such a splitter reaches 100% in the lossless case due to the suppression of reflection by the one-way waveguide. By introducing a defect in the junction area, the splitting ratio of the splitter can be gradually tuned by varying the external magnetic field, and large operation bandwidth can be achieved for a given splitting ratio.
Our results presented here focus on the radio frequency, and the concept can easily be applied to the photonic area.
| Language: | English |
|---|---|
| Year: | 2018 |
| Pages: | 125002 |
| ISSN: | 20408986 , 20408978 and 14644258 |
| Types: | Journal article |
| DOI: | 10.1088/2040-8986/aaeaac |
| ORCIDs: | Hong, Lujun , Xiao, Sanshui and 0000-0002-3602-515X |
