Prof. Francesco Poletti Profile

Prof. Francesco Poletti

at Optoelectronics Research Ctr

SPIE Involvement:

Author

Publications (32)

Proceedings Article | 13 March 2024 Presentation

High-energy picosecond optical oarametric oscillator with hollow-core fiber

Yudi Wu, Sijing Liang, Qiang Fu, Francesco Poletti, David Richardson, Lin Xu

Proceedings Volume PC12869, PC1286907 (2024) https://doi.org/10.1117/12.2692929

KEYWORDS: Optical parametric oscillators, Picosecond phenomena, Oscillators, Pulse signals, Fiber lasers, Wavelength tuning, Ultrafast phenomena, Signal generators, Mid-IR, Nanolithography

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Proceedings Article | 15 March 2023 Presentation + Paper

Direct and low-loss connection between a hollow-core optical fiber and a dispersion compensating fiber for dispersion-free delivery of short optical pulses in hollow-core fiber

Ailing Zhong, Radan Slavík, Daniel Dousek, Dmytro Suslov, Stanislav Zvánovec, Francesco Poletti, David Richardson, Matĕj Komanec

Proceedings Volume 12414, 1241404 (2023) https://doi.org/10.1117/12.2648720

KEYWORDS: Dispersion, Ultrafast phenomena, GRIN lenses, Single mode fibers, Pulse signals, Antireflective coatings, Optical fibers, Femtosecond pulse shaping, Design and modelling

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Proceedings Article | 11 January 2023 Presentation + Paper

Phase noise characterisation of a 2-km hollow-core nested antiresonant nodeless fibre for twin-field quantum key distribution

M. Minder, S. Albosh, O. Alia, R. Slavik, R. Kumar, F. Poletti, G. Kanellos, M. Lucamarini

Proceedings Volume 12335, 123350I (2023) https://doi.org/10.1117/12.2647583

KEYWORDS: Single mode fibers, Quantum key distribution, Phase shift keying, Polarization, Laser frequency, Phase modulation, Continuous wave operation, Signal attenuation, Windows, Visibility

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Proceedings Article | 11 January 2023 Presentation

Hollow-core fiber for near-infrared quantum communication

Umberto Nasti, Ian Davidson, Hesham Sakr, Francesco Poletti, Ross Donaldson

Proceedings Volume PC12335, PC123350E (2023) https://doi.org/10.1117/12.2644693

KEYWORDS: Quantum communications, Signal attenuation, Optical communications, Channel projecting optics, Waveguides, Raman spectroscopy, Raman scattering, Quantum key distribution, Optical networks, Optical fibers

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Proceedings Article | 30 May 2022 Presentation

Recent updates on hollow core fibre technology

Austin Taranta, Francesco Poletti, Hesham Sakr, Greg Jasion, John Hayes, Seyed Resz Sandoghchi, Lucy Hooper, S. Mohammad Mousavi, Eric Numkam Fokoua, Arsalan Saljoghei, Hans Christian Mulvad, Marcelo Alonso, Thomas Bradley, Ian Davidson, Yong Chen, David Richardson

Proceedings Volume PC12142, PC1214210 (2022) https://doi.org/10.1117/12.2624457

KEYWORDS: Telecommunications, Glasses, Computing systems, Vertical cavity surface emitting lasers, Silica, Sensors, Quantum computing, Quantum communications, Polarization, Optics manufacturing

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Proceedings Article | 30 May 2022 Presentation

Recent updates on hollow core fibre technology

Proceedings Volume PC12142, PC1214210 (2022) https://doi.org/10.1117/12.2624457

KEYWORDS: Telecommunications, Glasses, Computing systems, Vertical cavity surface emitting lasers, Silica, Sensors, Quantum computing, Quantum communications, Polarization, Optics manufacturing

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Proceedings Article | 25 May 2022 Presentation

Advances in hollow-core to standard fiber interconnection technology

Matěj Komanec, Dmytro Suslov, Ailing Zhong, Daniel Dousek, Stanislav Zvánovec, Eric Numkam Fokoua, Francesco Poletti, David Richardson, Radan Slavík

Proceedings Volume PC12140, PC1214001 (2022) https://doi.org/10.1117/12.2624102

KEYWORDS: Standards development, Signal attenuation, Single mode fibers, Micro optics, Telecommunications, Optical isolators, Optical filters, Multiplexers, Molecular bridges, Fusion splicing

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The attenuation of hollow-core fibers (HCFs) is predicted to surpass the minimum intrinsic attenuation of standard single-mode fibers (SMFs) in the near future. Recent advances in HCF performance and drawing technology have motivated their application not only in telecommunications but also in sensing and high-power delivery. Among HCFs, nested antiresonant nodeless fibers (NANFs) have shown the lowest attenuation values with 0.28 dB/km at 1550 nm and 0.22 dB/km at 1625 nm. Furthermore, the latest generation of NANFs effectively mitigates higher-order modes, which in some applications introduces a significantly limiting factor. As HCFs are becoming more available, their incorporation into standard SMF-based systems needs to be efficiently addressed. Various solutions to the HCF-SMF interconnection have already been proposed, such as the commonly employed fusion splicing with bridge fibers, using tapers to match the mode-fields, employing micro-optics, or using the fiber-array approach. Based on the fiber-array approach we have recently demonstrated losses of only 0.16 dB per interconnection and back reflection below -60 dB. But what if the interconnection itself can provide some additional functionality beyond low loss and low back reflection? Such an approach was already proposed in the micro-optics interconnection providing a function as an optical isolator or a wavelength-division multiplexer. Still, the relatively high complexity of such a device might limit its wider application. In this talk, I will overview current trends in HCF-SMF interconnection techniques which are enabling their incorporation into current SMF-based fiber-optic systems. I will present a future outlook of providing additional functionality to the HCF-SMF interconnection. I will focus on an interconnection technique we developed, based on the fiber-array approach. I will show how components such as an optical filter, a gas cell, or a Fabry-Perot cavity can be easily formed by simple tailoring of the HCF-SMF interconnection.

Proceedings Article | 19 May 2022 Presentation + Paper

Transient differential pressure-induced loss variation in as-drawn hollow core optical fibres

Shuichiro Rikimi, Thomas Kelly, Peter Horak, Yong Chen, Ian Davidson, Simon Bawn, Thomas Bradley, Austin Taranta, Francesco Poletti, David Richardson, Natalie Wheeler

Proceedings Volume 12140, 1214002 (2022) https://doi.org/10.1117/12.2621301

KEYWORDS: Optical properties, Structured optical fibers, Optical fibers, Fiber characterization

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Proceedings Article | 1 April 2022 Presentation

High-energy, mid-IR, short-pulsed, hollow-core-fiber-feedback OPO

Yudi Wu, Sijing Liang, Qiang Fu, Thomas Bradley, Lin Xu, Francesco Poletti, David Richardson

Proceedings Volume PC11985, PC119850W (2022) https://doi.org/10.1117/12.2607864

KEYWORDS: Optical parametric oscillators, Mid-IR, Picosecond phenomena, Ultrafast phenomena, Therapeutics, Spectroscopy, Signal attenuation, Reflectivity, Mirrors, Materials processing

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Proceedings Article | 7 March 2022 Presentation

Towards hollow-core optical fibers with lower attenuation than silica fibers

Hesham Sakr, Thomas Bradley, Gregory Jasion, Eric Rodrigue Numkam Fokoua, Seyed Reza Sandoghchi, Ian Davidson, Austin Taranta, Gianluca Guerra, William Shere, Yong Chen, John Hayes, David Richardson, Francesco Poletti

Proceedings Volume PC12028, PC1202802 (2022) https://doi.org/10.1117/12.2615006

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Proceedings Article | 7 March 2022 Poster

Coexistence analysis of classical channels with DV-QKD over hollow core nested antiresonant nodeless fibre (HC-NANF)

Obada Alia, Rodrigo Stange Tessinari, Sima Bahrani, Jaya Sagar, Thomas Bradley, Hesham Sakr, Kerrianne Harrington, John Hayes, Yong Chen, Periklis Petropoulos, David Richardson, Francesco Poletti, George Kanellos, Reza Nejabati, Dimitra Simeonidou

Proceedings Volume PC12015, PC1201519 (2022) https://doi.org/10.1117/12.2606802

KEYWORDS: Single mode fibers, Terahertz radiation, Raman scattering, Quantum key distribution, Quantum communications, Channel projecting optics

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Proceedings Article | 18 April 2021 Presentation

Unusual properties of hollow-core fibres

Radan Slavik, Eric Numkam Fokoua, Meng Ding, Zitong Feng, Francesco Poletti, David Richardson

Proceedings Volume 11773, 117730D (2021) https://doi.org/10.1117/12.2592496

KEYWORDS: Optical fibers, Interferometry, Temperature metrology, Glasses, Dispersion, Silica, Nonlinear dynamics, Laser damage threshold

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Proceedings Article | 18 April 2021 Poster + Presentation + Paper

Long-term stability of hollow core to standard optical fiber interconnection

Daniel Dousek, Matěj Komanec, Ailing Zhong, Dmytro Suslov, Stanislav Zvánovec, Petr Veselý, Yong Chen, Thomas Bradley, Eric Numkam Fokoua, Francesco Poletti, David Richardson, Radan Slavík

Proceedings Volume 11773, 117731B (2021) https://doi.org/10.1117/12.2592377

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Proceedings Article | 5 March 2021 Presentation + Paper

Towards low loss hollow core optical fibers

Thomas Bradley, Gregory Jasion, Hesham Sakr, Ian Davidson, John Hayes, Austin Taranta, Kerrianne Harrington, Eric Numkam Fokoua, Yong Chen, David Richardson, Francesco Poletti

Proceedings Volume 11713, 117130A (2021) https://doi.org/10.1117/12.2579577

KEYWORDS: Optical fibers, Telecommunications, Signal attenuation, Optical communications

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Proceedings Article | 1 April 2020 Presentation

Sensitivity of phase and propagation delay in hollow-core fibres (Conference Presentation)

Radan Slavik, Eric Numkam Fokoua, Meng Ding, Yong Chen, Marco Petrovich, Thomas Bradley, Francesco Poletti, David Richardson

Proceedings Volume 11355, 1135507 (2020) https://doi.org/10.1117/12.2556424

KEYWORDS: Temperature metrology, Optical fibers, Clocks, Physics, Synchrotrons, Linear particle accelerators, Large telescopes, Interferometers, Fiber optics sensors, Quantum optics

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Proceedings Article | 3 March 2020 Presentation + Paper

Composite material hollow core anti-resonant fiber electromodulators: exploring the optical FET response

Adam Lewis, Francesco De Lucia, Walter Belardi, Chung-Che Huang, John Hayes, Francesco Poletti, Dan Hewak, Pier J. Sazio

Proceedings Volume 11276, 1127608 (2020) https://doi.org/10.1117/12.2544650

KEYWORDS: Raman spectroscopy, Molybdenum, Cladding, Composites, Waveguides, Modulation, Silicon, Field effect transistors, Electro optics, Deposition processes

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Proceedings Article | 25 February 2020 Presentation + Paper

Alloy-based wire array metamaterial fibres and hyperlenses for imaging applications at MIR frequencies

Juliano Grigoleto Hayashi, Petr Janicek, Nicholas White, Francesco Poletti

Proceedings Volume 11283, 112831J (2020) https://doi.org/10.1117/12.2542412

KEYWORDS: Metamaterials, Silver, Copper, Hyperlenses, Optical fibers, Refractive index, Spatial frequencies, Borosilicate glass, Imaging arrays, Tin

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Proceedings Article | 31 January 2020 Open Access

Recent breakthroughs in hollow core fiber technology

Gregory Jasion, Thomas Bradley, Hesham Sakr, John Hayes, Yong Chen, Austin Taranta, Hans Christian Mulvad, Ian Davidson, Natalie Wheeler, Eric Numkam Fokoua, Wei Wang, David Richardson, Francesco Poletti

Proceedings Volume 11309, 1130902 (2020) https://doi.org/10.1117/12.2548585

KEYWORDS: Capillaries, Structured optical fibers, Signal attenuation, Scattering, Single mode fibers, Hollow waveguides

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Proceedings Article | 28 August 2019 Paper

Exploring the stability and repeatability of a hollow core fibre Raman gas sensor

M. Partridge, I. Davidson, W. Brooks, M. Foster, T. Bradley, J. Hayes, G. Jasion, M. Petrovich, F. Poletti, D. Richardson, N. Wheeler

Proceedings Volume 11199, 111991J (2019) https://doi.org/10.1117/12.2541294

KEYWORDS: Raman spectroscopy, Oxygen, Sensors, Nitrogen, Gas sensors, Fiber optics sensors, Spectrophotometry, Signal detection, Spectroscopy, Methane

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Proceedings Article | 23 February 2018 Paper

Composite material hollow core fibers: functionalisation with silicon and 2D materials

A. Lewis, F. De Lucia, W. Belardi, F. Poletti, C. C. Huang, D. Hewak, P. J. Sazio

Proceedings Volume 10535, 105350N (2018) https://doi.org/10.1117/12.2289785

KEYWORDS: Optical fibers, Molybdenum, Refractive index, Composites, Silicon, Waveguides, Numerical simulations, Raman spectroscopy, Cladding, Electro optical modeling

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Proceedings Article | 20 February 2017 Presentation + Paper

Exploring nonlinear pulse propagation, Raman frequency conversion and near octave spanning supercontinuum generation in atmospheric air-filled hollow-core Kagomé fiber

Seyedmohammad Abokhamis Mousavi, Hans Christian Hansen Mulvad, Natalie Wheeler, Peter Horak, Thomas Bradley, Shaif-ul Alam, John Hayes, Seyed Reza Sandoghchi, David Richardson, Francesco Poletti

Proceedings Volume 10088, 100880G (2017) https://doi.org/10.1117/12.2253706

KEYWORDS: Raman spectroscopy, Atmospheric propagation, Frequency conversion, Supercontinuum generation, Atmospheric optics, Nonlinear optics, Atmospheric modeling, Nonlinear dynamics, Wave propagation, Nitrogen, Glasses, Data modeling, Laser damage threshold

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Proceedings Article | 27 April 2016 Paper

Detailed study of macrobending effects in a wide transmission bandwidth hollow-core photonic bandgap fiber

Y. Chen, S. Sandoghchi, E. Numkam, T. Bradley, J. Hayes, N. Wheeler, G. Jasion, D. Gray, F. Poletti, M. Petrovich, D. Richardson

Proceedings Volume 9886, 98860X (2016) https://doi.org/10.1117/12.2225861

KEYWORDS: Structured optical fibers, Fiber characterization, Data centers, Data transmission, Nanophotonics, Specialty optical fibers, Cladding, Refractive index, Scanning electron microscopy, Scattering, Single mode fibers, Step index fibers, Optoelectronics, Photonic microstructures

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Proceedings Article | 27 April 2016 Paper

Dual hollow-core anti-resonant fibres

N. Wheeler, T. Bradley, J. Hayes, G. Jasion, Y. Chen, S. Sandoghchi, P. Horak, F. Poletti, M. Petrovich, D. Richardson

Proceedings Volume 9886, 988617 (2016) https://doi.org/10.1117/12.2225589

KEYWORDS: Fiber characterization, Hollow waveguides, Structured optical fibers, Fiber characterization, Cladding, Optical fibers, Optical properties, Silica, Polarization, Waveguides, Optical sensing, Quantum optics, Signal attenuation, Tunable lasers

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Proceedings Article | 8 March 2014 Paper

Inverse scattering designs of dispersion-engineered single-mode planar waveguides

Alexander May, Francesco Poletti, Michalis Zervas

Proceedings Volume 8988, 89881S (2014) https://doi.org/10.1117/12.2039220

KEYWORDS: Dispersion, Waveguides, Refractive index, Inverse scattering, Planar waveguides, Cladding, Wave propagation, Radio propagation, Numerical analysis, Signal attenuation

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Proceedings Article | 14 October 2010 Paper

Recent advances in highly nonlinear microstructured optical fibers for telecom applications

Francesco Poletti, Xian Feng, Angela Camerlingo, Periklis Petropoulos, Wei Loh, David Richardson

Proceedings Volume 7839, 783903 (2010) https://doi.org/10.1117/12.871550

KEYWORDS: Optical fibers, Dispersion, Glasses, Micro optical fluidics, Cladding, Nonlinear optics, Lead, Structured optical fibers, Solids, Scanning electron microscopy

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Proceedings Article | 3 March 2010 Paper

Recent advances in microstructured fibers for laser delivery and generation

J. Hayes, M. Petrovich, F. Poletti, P. Horak, N. G. Broderick, Xian Feng, S. Dasgupta, Wei Loh, Debashri Ghosh, Mrinmay Pal, Shyamal Bhadra, K. Chen, J. H. Price, S. Alam, D. Richardson

Proceedings Volume 7580, 758010 (2010) https://doi.org/10.1117/12.847923

KEYWORDS: Optical fibers, Glasses, Solids, Supercontinuum generation, Mid-IR, Visible radiation, Fiber lasers, Scattering, Laser development, Micro optical fluidics

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Proceedings Article | 5 October 2009 Paper

Microstructured optical fibers for gas sensing: design, fabrication, and post-fab processing

M. Petrovich, C. Grivas, F. Poletti, A. van Brakel, E. Austin, D. Richardson

Proceedings Volume 7503, 750303 (2009) https://doi.org/10.1117/12.833368

KEYWORDS: Micro optical fluidics, Structured optical fibers, Gas sensors, Birefringence, Sensors, Fabrication, Polarization, Femtosecond phenomena, Microfluidics, Fiber optics sensors

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Proceedings Article | 17 September 2007 Paper

RGB generation by four-wave mixing in small-core holey fibers

Peter Horak, Pascal Dupriez, Francesco Poletti, Marco Petrovich, Yoonchan Jeong, Johan Nilsson, David Richardson, David Payne

Proceedings Volume 6698, 66980P (2007) https://doi.org/10.1117/12.738483

KEYWORDS: Optical fibers, RGB color model, Fiber lasers, Four wave mixing, Picosecond phenomena, Raman spectroscopy, Birefringence, Silica, Light sources, Phase matching

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SPIE Journal Paper | 1 January 2007 Open Access

Suspended-core holey fiber for evanescent-field sensing

Andrew Webb, Francesco Poletti, David Richardson, Jayanta Sahu

OE, Vol. 46, Issue 01, 010503, (January 2007) https://doi.org/10.1117/12.10.1117/1.2430505

KEYWORDS: Silica, Cladding, Gases, Solids, Absorption, Fabrication, Gas sensors, Ultrasonics, Structured optical fibers, Glasses

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Proceedings Article | 23 February 2006 Paper

Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 µm – 5 µm

Jonathan Price, Tanya Monro, Heike Ebendorff-Heidepriem, Francesco Poletti, Vittoria Finazzi, Julie Leong, Periklis Petropoulos, Joanne Flanagan, Gilberto Brambilla, Xian Feng, David Richardson

Proceedings Volume 6102, 61020A (2006) https://doi.org/10.1117/12.660942

KEYWORDS: Glasses, Dispersion, Optical fibers, Micro optical fluidics, Bismuth, Mid-IR, Silica, Oxides, Supercontinuum generation, Picosecond phenomena

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Proceedings Article | 11 November 2005 Paper

Microstructured fibres for sensing applications

M. N. Petrovich, A. van Brakel, F. Poletti, K. Mukasa, E. Austin, V. Finazzi, P. Petropoulos, E. O'Driscoll, M. Watson, T. DelMonte, T. M. Monro, J. P. Dakin, D. J. Richardson

Proceedings Volume 6005, 60050E (2005) https://doi.org/10.1117/12.631617

KEYWORDS: Micro optical fluidics, Silica, Cladding, Absorption, Structured optical fibers, Sensors, Mid-IR, Refractive index, Solids, Biological and chemical sensing

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Proceedings Article | 25 October 2005 Paper

Microstructured fibers for high power applications

J. Baggett, M. Petrovich, J. Hayes, V. Finazzi, F. Poletti, R. Amezcua, N. Broderick, D. Richardson, T. Monro, P. Salter, G. Proudley, E. O'Driscoll

Proceedings Volume 6017, 601709 (2005) https://doi.org/10.1117/12.632809

KEYWORDS: Optical fibers, Solids, Cladding, Silica, Beam delivery, Waveguides, Polishing, Failure analysis, Optical properties, Laser damage threshold

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Showing 5 of 32 publications

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