Measuring the number of modes guided by multi-mode hollow core fibres
We report a method to experimentally estimate the effective number of modes guided by multi-mode anti-resonant hollow core optical fibres using their far field intensity distributions. With a simple experimental setup and incoherent illumination, an arbitrary number of modes can be measured quickly and accurately.
Authors
- Tim Birks
- Kerrianne Harrington (ORCID: https://orcid.org/0000-0003-3450-1842)
- David M. Bird (ORCID: https://orcid.org/0000-0003-2965-3462)
- R.J. Mears (ORCID: https://orcid.org/0009-0003-4155-996X)
- James Stone
- William Wadsworth
Publication Details
- Journal
- Optics Express
- Published
- 2026-01-20
- DOI
- https://doi.org/10.1364/oe.582711
- Primary Topic
- Photonic Crystal and Fiber Optics
- Type
- article
- Field-Weighted Citation Impact
- 0.00