Low-loss ultra-large mode area all-solid chalcogenide photonic crystal fiber for 20 W level mid-infrared laser delivery
To achieve mid-infrared high-power laser delivery, a single-mode large mode area (∼9900 µm<sup>2</sup>) all-solid photonic crystal fiber (AS-PCF) based on As<sub>2</sub>Se<sub>3</sub> and As<sub>2</sub>S<sub>3</sub> chalcogenide glasses was designed. The finite element method was used to study the influence of structural parameters on the optical properties of the fiber. The AS-PCF was fabricated by the stacking-drawing method after material purification, and the optical loss, the near-field mode distributions, and the high-power laser transmission were measured. The fiber exhibits a minimum loss of 4.62 dB/m, which is the lowest loss among chalcogenide AS-PCF on record, and it can carry at least 20 W of high-power transmission, demonstrating strong potential for mid-infrared laser delivery applications.
Authors
- Yantao Xu
- Haitao Guo
- Yanjie Chang
- Hao Zhang (ORCID: https://orcid.org/0000-0003-1821-2100)
- Tiankai Hou
- Chong Wang (ORCID: https://orcid.org/0000-0002-9549-1775)
Institutions
- Chinese Academy of Sciences (CN)
- Xi’an University of Posts and Telecommunications (CN)
- Shanxi University of Traditional Chinese Medicine (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-05-06
- DOI
- https://doi.org/10.1364/ol.557304
- Citations
- 2
- Primary Topic
- Photonic Crystal and Fiber Optics
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Shaanxi Province
- Key Research and Development Projects of Shaanxi Province