Journal article
Compact high-efficiency vortex beam emitter based on a silicon photonics micro-ring
Sun Yat-Sen University1
Department of Photonics Engineering, Technical University of Denmark2
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark3
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark4
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark5
Chinese Academy of Sciences6
Photonic integrated devices that emit vortex beam carrying orbital angular momentum are becoming key components for multiple applications. Here we propose and demonstrate a high-efficiency vortex beam emitter based on a silicon micro-ring resonator integrated with a metal mirror. Such a compact emitter is capable of generating vortex beams with a high efficiency and small divergence angle.
Vector vortex beams of various topological charges are selectively generated by the emitter at different wavelengths with an emission efficiency of up to 37%. (C) 2018 Optical Society of America
| Language: | English |
|---|---|
| Year: | 2018 |
| Pages: | 1319-1322 |
| ISSN: | 15394794 and 01469592 |
| Types: | Journal article |
| DOI: | 10.1364/OL.43.001319 |
| ORCIDs: | Ding, Yunhong , Guan, Xiaowei , Yvind, Kresten and Oxenløwe, Leif Katsuo |
