Theoretical analysis of backscattering in hollow-core antiresonant fibers
We present a theoretical analysis into the fundamental physical mechanisms contributing to backscattering in hollow-core antiresonant fibers. We consider Rayleigh scattering originating from the hollow regions of the fiber, which may be filled with gases, Rayleigh scattering from within the glass me...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2021-09-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0057999 |
| _version_ | 1818989837791789056 |
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| author | Eric Numkam Fokoua Vincent Michaud-Belleau Jérôme Genest Radan Slavík Francesco Poletti |
| author_facet | Eric Numkam Fokoua Vincent Michaud-Belleau Jérôme Genest Radan Slavík Francesco Poletti |
| author_sort | Eric Numkam Fokoua |
| collection | DOAJ |
| description | We present a theoretical analysis into the fundamental physical mechanisms contributing to backscattering in hollow-core antiresonant fibers. We consider Rayleigh scattering originating from the hollow regions of the fiber, which may be filled with gases, Rayleigh scattering from within the glass membranes, as well as the contribution from scattering at the glass surfaces. We derive expressions for the backscattering coefficient into any specified guided mode for an arbitrary excitation. These lead to general scaling relations with the core size and wavelength, which are found to be the key parameters for backscattering, regardless of the exact antiresonant geometry. For a nested antiresonant hollow-core fiber with a core diameter of 35 µm, the only antiresonant fiber geometry for which the experimental data are available in the literature, we find that the surface-scattering limited backscattering coefficient of the fundamental mode into itself is nearly 40 dB below that of a single mode fiber, in good agreement with recently published measurements. |
| first_indexed | 2024-12-20T19:44:50Z |
| format | Article |
| id | doaj.art-59e2743d487541f9b09897dcc50cbb0d |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-12-20T19:44:50Z |
| publishDate | 2021-09-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-59e2743d487541f9b09897dcc50cbb0d2022-12-21T19:28:27ZengAIP Publishing LLCAPL Photonics2378-09672021-09-0169096106096106-810.1063/5.0057999Theoretical analysis of backscattering in hollow-core antiresonant fibersEric Numkam Fokoua0Vincent Michaud-Belleau1Jérôme Genest2Radan Slavík3Francesco Poletti4Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United KingdomCentre d’optique, photonique et laser, Université Laval, Québec, Québec G1V 0A6, CanadaCentre d’optique, photonique et laser, Université Laval, Québec, Québec G1V 0A6, CanadaOptoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United KingdomOptoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United KingdomWe present a theoretical analysis into the fundamental physical mechanisms contributing to backscattering in hollow-core antiresonant fibers. We consider Rayleigh scattering originating from the hollow regions of the fiber, which may be filled with gases, Rayleigh scattering from within the glass membranes, as well as the contribution from scattering at the glass surfaces. We derive expressions for the backscattering coefficient into any specified guided mode for an arbitrary excitation. These lead to general scaling relations with the core size and wavelength, which are found to be the key parameters for backscattering, regardless of the exact antiresonant geometry. For a nested antiresonant hollow-core fiber with a core diameter of 35 µm, the only antiresonant fiber geometry for which the experimental data are available in the literature, we find that the surface-scattering limited backscattering coefficient of the fundamental mode into itself is nearly 40 dB below that of a single mode fiber, in good agreement with recently published measurements.http://dx.doi.org/10.1063/5.0057999 |
| spellingShingle | Eric Numkam Fokoua Vincent Michaud-Belleau Jérôme Genest Radan Slavík Francesco Poletti Theoretical analysis of backscattering in hollow-core antiresonant fibers APL Photonics |
| title | Theoretical analysis of backscattering in hollow-core antiresonant fibers |
| title_full | Theoretical analysis of backscattering in hollow-core antiresonant fibers |
| title_fullStr | Theoretical analysis of backscattering in hollow-core antiresonant fibers |
| title_full_unstemmed | Theoretical analysis of backscattering in hollow-core antiresonant fibers |
| title_short | Theoretical analysis of backscattering in hollow-core antiresonant fibers |
| title_sort | theoretical analysis of backscattering in hollow core antiresonant fibers |
| url | http://dx.doi.org/10.1063/5.0057999 |
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