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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Poletti, Francesco
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Microlens Hollow-Core Fiber Probes for Operando Raman Spectroscopy.
- 2024Double-clad antiresonant hollow-core fiber and its comparison with other fibers for multiphoton micro-endoscopycitations
- 2024Double-clad antiresonant hollow-core fiber and its comparison with other fibers for multiphoton micro-endoscopycitations
- 2024Roadmap on optical communicationscitations
- 2024End-capping hollow-core fibers with suppressed coupling into higher-order modes
- 2023Non-destructive characterization of nested and double nested antiresonant nodeless fiber microstructure geometrycitations
- 2023Optical time domain reflectometry for hollow core optical fibres
- 2023Loss in hollow-core fibers: mechanisms, scaling rules, and limitscitations
- 2021Hollow-core-fiber delivery of broadband mid-infrared light for remote multi-species spectroscopy
- 2021Gas-induced differential refractive index enhanced guidance in hollow-core optical fiberscitations
- 2021Compact chirped-pulse amplification systems based on highly Tm3+ doped germanate fibercitations
- 2021Opportunities and challenges for long-distance transmission in hollow-core fibrescitations
- 2020Extruded tellurite antiresonant hollow core fiber for mid-IR operationcitations
- 2019Flexible Mid-IR fiber bundle for thermal imaging of inaccessible areas ; Flexibilní svazek vláken pro tepelné zobrazování nepřístupných oblastí ve střední infračervené oblasticitations
- 2019Flexible mid-IR fiber bundle for thermal imaging of inaccessible areascitations
- 2019Highly efficient Tm3+ doped germanate large mode area single mode fiber lasercitations
- 2019Tellurite antiresonant hollow core microstructured fiber for mid-IR power deliverycitations
- 2019Highly efficient Tm 3+ doped germanate large mode area single mode fiber lasercitations
- 20183D-printed polymer antiresonant waveguides for short-reach terahertz applicationscitations
- 2018Development of Mid-IR fiber bundle for thermal imaging
- 2017Nd-doped phosphate glass cane laser: From materials fabrication to power scaling testscitations
- 2016Nd ^3+ Doped Phosphate Glass Waveguides for Pulsed Laser Applications
- 2015MicroStructure Element Method (MSEM): viscous flow model for the virtual draw of microstructured optical fiberscitations
- 2015Accurate modelling of fabricated hollow-core photonic bandgap fiberscitations
- 2015Anti-resonant hexagram hollow core fiberscitations
- 2014X-ray tomography for structural analysis of microstructured and multimaterial optical fibers and preformscitations
- 2014Fabrication of multiple parallel suspended-core optical fibers by sheet-stackingcitations
- 2010Dispersion controlled highly nonlinear fibers for all optical processing at telecoms wavelengthscitations
- 2010Near-zero dispersion, highly nonlinear lead-silicate W-type fiber for applications at 1.55µmcitations
- 2009Dispersion-shifted all-solid high index-contrast microstructured optical fiber for nonlinear applications at 1.55µmcitations
- 2009Four-wave mixing-based wavelength conversion in a short-length of a solid 1D microstructured fibre
- 2007RGB generation by four-wave mixing in small-core holey fibers
- 2007Mid-IR supercontinuum generation from non-silica microstructured optical fiberscitations
- 2006Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 µm - 5 µmcitations
Places of action
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article
End-capping hollow-core fibers with suppressed coupling into higher-order modes
Abstract
We propose a hollow-core fiber (HCF) end-cap that incorporates a short segment of a single-mode fiber (SMF) that serves as a modal filter. To adapt the end-cap input and output beam to the desired size, the SMF was fusion spliced with short<br/>segments of mode-field adapting graded index (GRIN) fibers on both sides. The end-cap is anti-reflective coated to minimize insertion loss and parasitic reflections. The presented proof-ofconcept experiments show its ability to suppress coupling into HCFs’ higher-order modes. For example, without any end-cap, the extinction ratio between the LP11 and the fundamental mode<br/>was found to be as low as 9 dB when coupling light from a freespace beam that was misaligned by as little as 1.1◦ This was improved to 23 dB when inserting the developed end-cap. Such small angle misalignment often exists when aligning the input beam with 3-axis (x,y,z) stages only (rather than 5-axis that also include pitch and yaw). Finally, we glued the end-cap with the HCF, providing hermetic sealing to the HCF input/output. This is of interest for stable operation in applications that use free-space light launch or require HCF output into free space.