Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber
We experimentally demonstrate an acoustically modulated antiresonant nanoweb hollow-core fiber (N-HCF) for the first time. The N-HCF contains two off-center air cores with a diameter difference of 5 μm, separated by a nanoweb of silica. We analytically simulate the influence of the N-HCF&...
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IEEE
2025-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/11045409/ |
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| author | Ricardo E. da Silva Cristiano M. B. Cordeiro |
| author_facet | Ricardo E. da Silva Cristiano M. B. Cordeiro |
| author_sort | Ricardo E. da Silva |
| collection | DOAJ |
| description | We experimentally demonstrate an acoustically modulated antiresonant nanoweb hollow-core fiber (N-HCF) for the first time. The N-HCF contains two off-center air cores with a diameter difference of 5 μm, separated by a nanoweb of silica. We analytically simulate the influence of the N-HCF’s core diameter, cladding wall, and nanoweb thicknesses on the confinement losses, effective indices, and beatlengths of the guided fundamental (HE11) and higher-order modes (TE01, TM01), from 750 to 1200 nm. The phase-matching of the acoustic waves and modal beatlengths is also estimated and discussed. The fabricated 3.6 cm long acousto-optic device modulates record-wide bandwidths (up to 450 nm) while providing high modulation depths (up to 8 dB) at low drive voltages (10 V). Simulated and measured results provide useful insights for designing, modeling, and characterizing the N-HCF’s transmission spectrum and modulation performance. These achievements lead to highly efficient, compact, and fast all-fiber sensors and modulators promising for application in pulsed fiber lasers. |
| format | Article |
| id | doaj-art-7be1d7d57ee14955826c5c4df458451e |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
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| series | IEEE Photonics Journal |
| spelling | doaj-art-7be1d7d57ee14955826c5c4df458451e2025-08-20T03:29:35ZengIEEEIEEE Photonics Journal1943-06552025-01-011741610.1109/JPHOT.2025.358168111045409Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core FiberRicardo E. da Silva0https://orcid.org/0000-0002-6271-0361Cristiano M. B. Cordeiro1https://orcid.org/0000-0002-8787-0636Institute of Physics Gleb Wataghin, University of Campinas (UNICAMP), Campinas, BrazilInstitute of Physics Gleb Wataghin, University of Campinas (UNICAMP), Campinas, BrazilWe experimentally demonstrate an acoustically modulated antiresonant nanoweb hollow-core fiber (N-HCF) for the first time. The N-HCF contains two off-center air cores with a diameter difference of 5 μm, separated by a nanoweb of silica. We analytically simulate the influence of the N-HCF’s core diameter, cladding wall, and nanoweb thicknesses on the confinement losses, effective indices, and beatlengths of the guided fundamental (HE11) and higher-order modes (TE01, TM01), from 750 to 1200 nm. The phase-matching of the acoustic waves and modal beatlengths is also estimated and discussed. The fabricated 3.6 cm long acousto-optic device modulates record-wide bandwidths (up to 450 nm) while providing high modulation depths (up to 8 dB) at low drive voltages (10 V). Simulated and measured results provide useful insights for designing, modeling, and characterizing the N-HCF’s transmission spectrum and modulation performance. These achievements lead to highly efficient, compact, and fast all-fiber sensors and modulators promising for application in pulsed fiber lasers.https://ieeexplore.ieee.org/document/11045409/Acousto-optic devicesantiresonant nanoweb hollow-core fiberanalytical modelingflexural acoustic waves |
| spellingShingle | Ricardo E. da Silva Cristiano M. B. Cordeiro Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber IEEE Photonics Journal Acousto-optic devices antiresonant nanoweb hollow-core fiber analytical modeling flexural acoustic waves |
| title | Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber |
| title_full | Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber |
| title_fullStr | Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber |
| title_full_unstemmed | Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber |
| title_short | Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber |
| title_sort | ultrawide dynamic bandwidth modulation of an antiresonant nanoweb hollow core fiber |
| topic | Acousto-optic devices antiresonant nanoweb hollow-core fiber analytical modeling flexural acoustic waves |
| url | https://ieeexplore.ieee.org/document/11045409/ |
| work_keys_str_mv | AT ricardoedasilva ultrawidedynamicbandwidthmodulationofanantiresonantnanowebhollowcorefiber AT cristianombcordeiro ultrawidedynamicbandwidthmodulationofanantiresonantnanowebhollowcorefiber |