We examined nonlinear fiber fuse effect (FFE) in hollow optical fibers (HOFs) that consist of a central air hole surrounded by a high-index ring core and silica cladding. In contrast to conventional solid-core fibers, the HOF with a hole diameter of 4 μm showed high threshold power of 4W, and resulted in unique tadpole-like voids in periodic arrays after the FFE. As the hole diameter increased to 6 μm, plasma propagation was suppressed within the distance of 1mm inside of the HOF. Detailed comparisons were made in terms of threshold power, void formation, and penetration length.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics