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Alex Fuerbach

Also published under: A. Fuerbach, Alexander Fuerbach

Publications
54
Citations
73
Publications by Year
20052024
Co-Authors:
Show All Co-Authors (87)
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Alex Fuerbach

Also published under: A. Fuerbach, Alexander Fuerbach

Affiliation

School of Mathematical and Physical Sciences
Macquarie University
Sydney, NSW, Australia

Publication Topics

Biography

Alexander Fuerbach was born in Vienna, Austria. He received the master's degree in engineering in 1999 and the Ph.D. degree in photonics in 2001 from the Vienna University of Technology under the supervision of Prof. Ferenc Krausz. He then joined Femtolasers Produktions GmbH where he was responsible for the development of advanced ultrashort-pulsed Ti:Sapphire laser systems. In 2004 he returned to academia and moved to Australia to take the position of a Research Fellow at the University of Sydney, studying ultrafast pulse propagation effects in novel optical fibres. In late 2005 he was awarded an Australian Postdoctoral Fellowship which allowed him to establish his own research group at Macquarie University in Sydney where he has been ever...
Publications
54
Citations
73
Publications by Year
20052024
Co-Authors:
Show All Co-Authors (87)
Author's Published Works

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Femtosecond laser waveguide inscription in linear and nonlinear mid-infrared transparent glasses

Alex Fuerbach;Thuy Trong Ha;Wajahat Hussain;Toney Teddy Fernandez

2024 24th International Conference on Transparent Optical Networks (ICTON)
Year: 2024 | Conference Paper |
In this paper, we report on the fabrication of integrated photonic devices for the mid-infrared spectral range via the femtosecond laser direct-write technique. Utilising this method, the inscription of wavelength-selective fibre-pigtailed directional couplers in synthetic silica glass with ultra-low hydroxide (OH) content is demonstrated. Further, we show that a tailored compositional redesign of...Show More

Femtosecond laser waveguide inscription in linear and nonlinear mid-infrared transparent glasses

Alex Fuerbach;Thuy Trong Ha;Wajahat Hussain;Toney Teddy Fernandez

Year: 2024 | Conference Paper |

Towards the Development of Mid-Infrared All-Integrated Fiber Laser Systems for Drone-Based Remote Sensing

T. Gretzinger;T.T. Fernandez;A. Fuerbach

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2023 | Conference Paper |
The mid-infrared (mid-IR) spectrum (2-20\ \mu\mathrm{m})) is attracting significant scientific and technological interest since virtually all molecules have rotational or vibrational absorption lines in this wavelength range. Applications for identifying unknown biological and chemical threats range from molecular trace detection (e.g., airport security screening) to environmental monitoring and...Show More

Towards the Development of Mid-Infrared All-Integrated Fiber Laser Systems for Drone-Based Remote Sensing

T. Gretzinger;T.T. Fernandez;A. Fuerbach

Year: 2023 | Conference Paper |

Femtosecond Laser-Written Waveguides and Couplers for Integrated Mid-Infrared Photonic Devices

T.T. Fernandez;S. Gross;M. Withford;B. Johnston;T. Gretzinger;S. Rehman;A. Fuerbach

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2023 | Conference Paper |
Virtually every molecule can uniquely be identified by a series of characteristic mid-infrared (IR) absorption lines, thus commonly referred to as the molecule's spectral fingerprint. A-priori unknown substances can therefore be detected with exceptional high selectivity by measuring a sample's response to illumination with broadband mid-infrared light [1]. Consequently, potential applications of ...Show More

Femtosecond Laser-Written Waveguides and Couplers for Integrated Mid-Infrared Photonic Devices

T.T. Fernandez;S. Gross;M. Withford;B. Johnston;T. Gretzinger;S. Rehman;A. Fuerbach

Year: 2023 | Conference Paper |

Nanolayered Natural Mineral Muscovite - Single fs Laser Pulse Interaction: A Tool to Uncover Material Variability

Deb M Kane;Saurabh Awasthi;Alex Fuerbach;Douglas J Little

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2023 | Conference Paper |
High quality sheet muscovite mica is a natural mineral with numerous applications in electronics and science. Flexible electronics and energy storage are significant research topics involving it at this time. Its many uses rely on its physical characteristics: being transparent (fig. 1(a)), electrically insulating, chemically inert, flexible, elastic, infusible, birefringent, having a high dielect...Show More

Nanolayered Natural Mineral Muscovite - Single fs Laser Pulse Interaction: A Tool to Uncover Material Variability

Deb M Kane;Saurabh Awasthi;Alex Fuerbach;Douglas J Little

Year: 2023 | Conference Paper |

FBG-Stabilized Dysprosium:Fluoroindate Mid-Infrared Fiber Laser

Yan Ososkov;Jinho Lee;Toney T. Fernandez;Alexander Fuerbach;Stuart D. Jackson

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
Recent studies suggest fluoroindate (InF3 glass fibers to be better suited for the development of mid-infrared fiber lasers systems as compared to the commonly used fluorozirconate (ZBLAN) fibers [1]. The extended transparency window up to 5.5 $\upmu \mathrm{m}$ and the increased resistance to water ingress [2] allowed the demonstration of laser emission in 3 - 4 $\upmu \mathrm{m}$ region using a ...Show More

FBG-Stabilized Dysprosium:Fluoroindate Mid-Infrared Fiber Laser

Yan Ososkov;Jinho Lee;Toney T. Fernandez;Alexander Fuerbach;Stuart D. Jackson

Year: 2023 | Conference Paper |

Ultrafast laser-pulse processing of muscovite – contrasting response at 515 nm and 800 nm

Saurabh Awasthi;Douglas J. Little;Alex Fuerbach;Deb M. Kane

2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2020 | Conference Paper |
Muscovite, a dielectric, shows a qualitatively different response to irradiation with a single $\sim 150$ fs laser pulse at 515 nm as compared to 800 nm. Pulse fluences up to 7J/cm2 are studied. © 2020 The Authors.Show More

Ultrafast laser-pulse processing of muscovite – contrasting response at 515 nm and 800 nm

Saurabh Awasthi;Douglas J. Little;Alex Fuerbach;Deb M. Kane

Year: 2020 | Conference Paper |

All-fibre Ultrafast Mid-infrared Laser

Gayathri Bharathan;Luyi Xu;Xiantao Jiang;Han Zhang;Matthew Majewski;Stuart D. Jackson;Alex Fuerbach

2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2020 | Conference Paper |
We report the first wavelength stabilized all-fibre ultrafast mid-infrared laser using MXene as a novel saturable absorber. This all-integrated pulsed laser is a promising tool for a broad range of applications in the mid-infrared regime.Show More

All-fibre Ultrafast Mid-infrared Laser

Gayathri Bharathan;Luyi Xu;Xiantao Jiang;Han Zhang;Matthew Majewski;Stuart D. Jackson;Alex Fuerbach

Year: 2020 | Conference Paper |

Femtosecond Ultraviolet Pulses Generated Directly From a Mode-Locked Ce:LiCAF Laser

Adam Sharp;Ondrej Kitzler;Alex Fuerbach;David J. Spence;David W. Coutts

2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2020 | Conference Paper |
We report the direct generation of sub-100 fs ultraviolet pulses from a synchronously-pumped mode-locked Ce:LiCAF laser. Dispersion-tuning around 290 nm via cavity length is also demonstrated, when setup for longer pulses.Show More

Femtosecond Ultraviolet Pulses Generated Directly From a Mode-Locked Ce:LiCAF Laser

Adam Sharp;Ondrej Kitzler;Alex Fuerbach;David J. Spence;David W. Coutts

Year: 2020 | Conference Paper |

Asynchronous Cross-Correlation Using a Time Reference

Adam Sharp;Ondrej Kitzler;Alex Fuerbach;David J. Spence;David W. Coutts

2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2020 | Conference Paper |
We have modified an asynchronous cross-correlation technique for measuring the duration of low energy ultrafast ultraviolet pulses using an auxiliary probe laser, extending its capability to sub-100 fs pulses that are not necessarily stable.Show More

Asynchronous Cross-Correlation Using a Time Reference

Adam Sharp;Ondrej Kitzler;Alex Fuerbach;David J. Spence;David W. Coutts

Year: 2020 | Conference Paper |

Optical waveguide fabrication for the mid-infrared in fluorophosphate glasses

Sobia Rehman;Toney Teddy Fernandez;Simon Gross;Alex Fuerbach

2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2020 | Conference Paper |
A systematic parameter study into the inscription of optical waveguides into the mid-infrared compatible fluorophosphate glass N-FK58 is presented. Results show that the fabrication of structures with high numerical aperture is feasible in this material.Show More

Optical waveguide fabrication for the mid-infrared in fluorophosphate glasses

Sobia Rehman;Toney Teddy Fernandez;Simon Gross;Alex Fuerbach

Year: 2020 | Conference Paper |

Near-infrared Pump Wavelengths for High Efficiency Dysprosium Doped Mid-infrared Fibre Lasers

M. Z. Amin;M. R. Majewski;R. I. Woodward;A. Fuerbach;S. D. Jackson

2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2020 | Conference Paper |
We report two excited-state absorption free near-infrared pump wavelengths (0.8 and 0.9 μm) for dysprosium-doped mid-infrared fibre lasers. High power diodes are available at these wavelengths, which opens up the opportunity for a diode-pumped system.Show More

Near-infrared Pump Wavelengths for High Efficiency Dysprosium Doped Mid-infrared Fibre Lasers

M. Z. Amin;M. R. Majewski;R. I. Woodward;A. Fuerbach;S. D. Jackson

Year: 2020 | Conference Paper |

Mid-Infrared Er3+:ZBLAN Waveguide Using ZBLAN Glass Extrusion, Femto-Second Inscription and Dual-Wavelength Pumping for the Generation of 3.5 µm Lasing

Ori Henderson-Sapir;Saheed Oladipupo Fashola;Nathaniel Bawden;Alastair Dowler;Alson Ng;David J. Ottaway;Alex Fuerbach;Heike Ebendorf-Heidepriem

2020 22nd International Conference on Transparent Optical Networks (ICTON)
Year: 2020 | Conference Paper |
Cited by: Papers (1)
We present our work towards a 3.5 μm Er3+:ZBLAN femto-second laser inscribed waveguide laser. The waveguide was made by extruding bulk ZBLAN glass into a slab for the first time, to the best of our knowledge. The slab was then cut and polished with multiple concentric-ring waveguides of 28 - 36 μm core diameter written into the glass along its long axis resulting with a 125 mm long waveguides embe...Show More

Mid-Infrared Er3+:ZBLAN Waveguide Using ZBLAN Glass Extrusion, Femto-Second Inscription and Dual-Wavelength Pumping for the Generation of 3.5 µm Lasing

Ori Henderson-Sapir;Saheed Oladipupo Fashola;Nathaniel Bawden;Alastair Dowler;Alson Ng;David J. Ottaway;Alex Fuerbach;Heike Ebendorf-Heidepriem

Year: 2020 | Conference Paper |

Novel Near-infrared Pump Wavelengths for Dysprosium Fiber Lasers

Md. Ziaul Amin;Matthew R. Majewski;Robert I. Woodward;Alexander Fuerbach;Stuart D. Jackson

Journal of Lightwave Technology
Year: 2020 | Volume: 38, Issue: 20 | Journal Article |
Cited by: Papers (19)
We report two new near-infrared pump wavelengths at 0.8 μm and 0.9 μm for dysprosium (Dy3+)-doped mid-infrared fiber lasers, which are free from detrimental pump excited state absorption that has limited all previous Dy3+ fiber lasers using longer near-infrared pump wavelengths (i.e., 1.1 μm, 1.3 μm, and 1.7 μm). The maximum measured laser slope efficiencies were 18.5% and 23.7% with respect to la...Show More

Novel Near-infrared Pump Wavelengths for Dysprosium Fiber Lasers

Md. Ziaul Amin;Matthew R. Majewski;Robert I. Woodward;Alexander Fuerbach;Stuart D. Jackson

Year: 2020 | Volume: 38, Issue: 20 | Journal Article |

Direct Femtosecond Laser Inscription of Highly Reflective and Low Loss Mid-Infrared Fiber Bragg Gratings

Gayathri Bharathan;Toney Teddy Fernandez;Martin Ams;Robert I. Woodward;Darren D. Hudson;Alex Fuerbach

2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2019 | Conference Paper |
Mid-infrared (mid-IR) fiber lasers in the 2.5-5 μm wavelength range have great potential to play a pivotal role in spectroscopy and medicine [1]. However, at present the non-existence of fiber-coupled optical components for these wavelengths severely limits the ability to build highly efficient alignment-free, low loss all-fiber lasers. This relates to the fact that fabricating various in-fiber co...Show More

Direct Femtosecond Laser Inscription of Highly Reflective and Low Loss Mid-Infrared Fiber Bragg Gratings

Gayathri Bharathan;Toney Teddy Fernandez;Martin Ams;Robert I. Woodward;Darren D. Hudson;Alex Fuerbach

Year: 2019 | Conference Paper |

Fabrication of Gratings in Mid-Infrared Compatible Fibres via Femtosecond Laser Direct Inscription

Alex Fuerbach;Gayathri Bharathan;Toney Teddy Fernandez;Martin Ams

2019 21st International Conference on Transparent Optical Networks (ICTON)
Year: 2019 | Conference Paper |
Cited by: Papers (2)
We report on research into the fabrication of different types of gratings into optical fibres that are transparent at mid-infrared wavelengths. In particular, we focus on direct femtosecond laser inscription of fibre-Bragg gratings with parallel as well as with tilted grating planes into zirconium and indium fluoride fibres. It is shown that postannealing of the gratings can lead to an increase or...Show More

Fabrication of Gratings in Mid-Infrared Compatible Fibres via Femtosecond Laser Direct Inscription

Alex Fuerbach;Gayathri Bharathan;Toney Teddy Fernandez;Martin Ams

Year: 2019 | Conference Paper |

Grating Inscription Into Fluoride Fibers: A Review

Alexander Fuerbach;Gayathri Bharathan;Martin Ams

IEEE Photonics Journal
Year: 2019 | Volume: 11, Issue: 5 | Journal Article |
Cited by: Papers (11)
First demonstrated over four decades ago, fiber gratings, and in particular fiber Bragg gratings (FBGs), have become indispensable and ubiquitous components within fiber laser cavities as well as optical communication networks and sensor systems. Because of their overwhelming use, the bulk of published work to date has concentrated on fibers that are composed of silica-based glasses, yet those bec...Show More

Grating Inscription Into Fluoride Fibers: A Review

Alexander Fuerbach;Gayathri Bharathan;Martin Ams

Year: 2019 | Volume: 11, Issue: 5 | Journal Article |

All-in-One Fiber Laser Based on a Liquid Crystal Transducer

Xinyue Lei;Christoph Wieschendorf;Josiah Firth;Francois Ladouceur;Leonardo Silvestri;Alex Fuerbach

IEEE Photonics Technology Letters
Year: 2019 | Volume: 31, Issue: 17 | Journal Article |
Cited by: Papers (2)
We report a new method of generating continuous-wave (cw) radiation, Q-Switched as well as mode-locked laser pulses from a single linear fiber laser cavity. The three operating modes can be selected by the electric signal that is applied to an intracavity liquid crystal (LC) transducer cell. In addition, this is the first demonstration of using an LC modulator as an active mode-locking device in a...Show More

All-in-One Fiber Laser Based on a Liquid Crystal Transducer

Xinyue Lei;Christoph Wieschendorf;Josiah Firth;Francois Ladouceur;Leonardo Silvestri;Alex Fuerbach

Year: 2019 | Volume: 31, Issue: 17 | Journal Article |

High-Efficiency Watt-Level Mid-Infrared Fiber Lasers Beyond 3 μm Using Dy:ZBLAN

R.I. Woodward;M.R. Majewski;G. Bharathan;D. D. Hudson;A. Fuerbach;S. D. Jackson

2018 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
Year: 2018 | Conference Paper |
We demonstrate an optimized in-band-pumped dysprosium fiber laser with 73% slope efficiency and 1.1 W output at 3.15 μm: the first watt-level fiber source in the 3.0-3.4 μm region and highest ever efficiency mid-IR fiber laser.Show More

High-Efficiency Watt-Level Mid-Infrared Fiber Lasers Beyond 3 μm Using Dy:ZBLAN

R.I. Woodward;M.R. Majewski;G. Bharathan;D. D. Hudson;A. Fuerbach;S. D. Jackson

Year: 2018 | Conference Paper |

Few-Cycle Pulse Generation from a 3 μm Fiber Laser

R. I. Woodward;D. D. Hudson;A. Fuerbach;S. D. Jackson

2018 Conference on Lasers and Electro-Optics (CLEO)
Year: 2018 | Conference Paper |
We demonstrate the generation of 70-fs pulses (~7 optical-cycles) from a mid-infrared mode-locked Ho:ZBLAN fiber laser using nonlinear compression with step-index chalcogenide fiber. Experiments are supported by numerical modelling, confirming the scalability of this approach.Show More

Few-Cycle Pulse Generation from a 3 μm Fiber Laser

R. I. Woodward;D. D. Hudson;A. Fuerbach;S. D. Jackson

Year: 2018 | Conference Paper |

Novel liquid crystal cells for short-pulsed monolithic guided-wave laser sources

Christoph Wieschendorf;Josiah Firth;Leonardo Silvestri;Simon Gross;François Ladouceur;Michael J. Withford;David J. Spence;Alex Fuerbach

2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2017 | Conference Paper |
We demonstrate that a novel family of miniaturized deformed helix ferroelectric liquid crystal cells that has recently been developed in the context of distributed optical sensing networks can also be used to realize fully monolithic, actively Q-switched waveguide lasers as well as actively mode-locked all-fiber lasers. Those cells enable the development of pulsed laser sources with the same level...Show More

Novel liquid crystal cells for short-pulsed monolithic guided-wave laser sources

Christoph Wieschendorf;Josiah Firth;Leonardo Silvestri;Simon Gross;François Ladouceur;Michael J. Withford;David J. Spence;Alex Fuerbach

Year: 2017 | Conference Paper |

Ultrafast fiber lasers in the Mid-IR water vapor window

Darren D. Hudson;Sergei Antipov;Stuart D. Jackson;Alexander Fuerbach

2017 Conference on Lasers and Electro-Optics (CLEO)
Year: 2017 | Conference Paper |
We demonstrate record performance in a mid-IR ultrafast fiber laser by using holmium instead of erbium as the active gain medium. The 2.9 μm laser emits 180 fs pulses with 37 kW peak power.Show More

Ultrafast fiber lasers in the Mid-IR water vapor window

Darren D. Hudson;Sergei Antipov;Stuart D. Jackson;Alexander Fuerbach

Year: 2017 | Conference Paper |

Novel mid-infrared fiber laser sources

A. Fuerbach;S. Antipov;D. Hudson;M. Majewski;S. Jackson

2017 19th International Conference on Transparent Optical Networks (ICTON)
Year: 2017 | Conference Paper |
We report on our research into fluoride fiber-based 3 μm class laser sources. Using holmium as the gain medium, record-high peak power levels are achieved in mode-locked laser systems that emit ultrashort pulses in the water vapor transmission window around 2.9 μm. Highly nonlinear and dispersion-engineered hybrid chalcogenide-polymer microwires are utilized to extend the frequency range of those ...Show More

Novel mid-infrared fiber laser sources

A. Fuerbach;S. Antipov;D. Hudson;M. Majewski;S. Jackson

Year: 2017 | Conference Paper |

Novel saturable absorbers for mode-locked Tm:ZBLAN waveguide chip lasers

Xiantao Jiang;Simon Gross;Han Zhang;Zhinan Guo;Fabian Rotermund;Dong-Il Yeom;Michael J. Withford;Alexander Fuerbach

2016 Conference on Lasers and Electro-Optics (CLEO)
Year: 2016 | Conference Paper |
Novel saturable absorbers based on carbon nanotubes, graphene, topological insulators, transition metal dichalcogenides and black phosphorus were fabricated and characterized. Their performance for short pulse generation in Tm:ZBLAN waveguide chip lasers was analyzed. For the first time to our knowledge, Q-switched mode-locked operation of a mid-IR ZBLAN waveguide chip laser was realized using top...Show More

Novel saturable absorbers for mode-locked Tm:ZBLAN waveguide chip lasers

Xiantao Jiang;Simon Gross;Han Zhang;Zhinan Guo;Fabian Rotermund;Dong-Il Yeom;Michael J. Withford;Alexander Fuerbach

Year: 2016 | Conference Paper |

Novel nanomaterial-based saturable absorbers for ultrashort-pulsed mid-infrared waveguide chip lasers

A. Fuerbach;X. Jiang;S. Gross;H. Zhang;Z. Guo;F. Rotermund;D. Yeom;M. J. Withford

2016 18th International Conference on Transparent Optical Networks (ICTON)
Year: 2016 | Conference Paper |
Cited by: Papers (1)
Mode-locked integrated mid-IR waveguide chip lasers with ultra-short pulse duration and high peak power are of great interest for a large range of applications like trace-gas spectroscopy and early-cancer detection. As those lasers are automatically embedded within a small block of doped glass, they are inherently robust and immune to environmental fluctuations. In this paper we investigate the su...Show More

Novel nanomaterial-based saturable absorbers for ultrashort-pulsed mid-infrared waveguide chip lasers

A. Fuerbach;X. Jiang;S. Gross;H. Zhang;Z. Guo;F. Rotermund;D. Yeom;M. J. Withford

Year: 2016 | Conference Paper |

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