Injection-locked highly Yb3+-doped uncoupled-61-core phosphate fiber laser
Abstract
Uncoupled multicore fibers are promising platforms for advanced optical communications, optical computing, and novel laser systems. In this paper, an injection-locked highly ytterbium (Yb3+)-doped uncoupled-61-core phosphate fiber laser at 1030 nm is reported. The 61-core fiber with a core-to-core pitch of 20 μm was fabricated with the stack-and-draw technique. Each core doped with 6-wt.% Yb3+ ions has a diameter of 3 μm and numerical aperture of 0.2. Linearly polarized single-frequency output of 9.1 W was obtained from the injection-locked cavity with a 10-cm-long gain fiber at a pump power of 23.6 W. The injection locking of all 61 cores was confirmed by inspecting the longitudinal modes of the individual lasers with a scanning Fabry–Perot interferometer. The performance of the injection-locked 61-core fiber laser was characterized and compared to that of the free-running operation in terms of optical spectrum, near- and far-field intensity profiles, and relative intensity noise.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 18, 2023
- Source ID
- 10.1364/ol.481018
Entities
People
- Arturo Chavez-pirson
- Jason Meyer
- Jie Zong
- Junfeng Wang
- Lizhu Li
- Maohe Li
- Mehmetcan Akbulut
- Nasser Peyghambarian
- Robert A. Norwood
- Xiushan Zhu
Organizations
- United States Navy
- University of Arizona