Extremely lower lasing threshold in Er3+/Yb3+ co-doped phosphate dual glass microspheres
Erbium-doped glass microsphere laser systems hold significant promise in the applications of bio-medicine and optical fiber sensing. However, their development has been hindered by the relatively high laser pump threshold. In this study, we proposed a unique dual microsphere system where two microspheres are affixed to a single-mode fiber taper and achieved a remarkably low lasing threshold of 19 μW for single-mode laser emission at 1544 nm. This is in sharp contrast with the lasing threshold of 56 μW observed in single microspheres. Our findings represent a significant achievement in the development of low-threshold, compact infrared laser sources for emerging applications in photonics.
Authors
- Rongping Wang (ORCID: https://orcid.org/0000-0002-4426-824X)
- Qing Xue Huang
- Qiuhua Nie
- Yixiao Gao (ORCID: https://orcid.org/0000-0002-9472-1241)
- Shixun Dai (ORCID: https://orcid.org/0000-0001-5085-0933)
- Xunsi Wang (ORCID: https://orcid.org/0000-0002-4882-8363)
- Shengchuang Bai (ORCID: https://orcid.org/0000-0002-5367-3538)
- El Sayed Yousef (ORCID: https://orcid.org/0009-0006-8405-3792)
- Haonan Zhuo
- Zhouyi Yu
Institutions
- Ningbo University (CN)
- National Engineering Research Center of Electromagnetic Radiation Control Materials (CN)
- King Khalid University (SA)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-08-26
- DOI
- https://doi.org/10.1063/5.0216612
- Citations
- 2
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.42
Funders
- National Natural Science Foundation of China
- King Khalid University
- Natural Science Foundation of Ningbo
- Basic Public Welfare Research Program of Zhejiang Province