Investigating spatio-temporal instabilities in next-generation lasers. This project aims to decipher the transient spatio-temporal dynamics of lasers with an emphasis on investigating chaotic instabilities whose fundamental laws are unknown and whose effects impair laser performance in applications with a billion-dollar aggregate value. This project seeks to solve the problem by unravelling the evolving beam's structure on picosecond timescales using an optical device that dissects the beam in s ....Investigating spatio-temporal instabilities in next-generation lasers. This project aims to decipher the transient spatio-temporal dynamics of lasers with an emphasis on investigating chaotic instabilities whose fundamental laws are unknown and whose effects impair laser performance in applications with a billion-dollar aggregate value. This project seeks to solve the problem by unravelling the evolving beam's structure on picosecond timescales using an optical device that dissects the beam in space and time. The expected outcome is a suite of tools capable of guiding global efforts to develop next-generation lasers. The discoveries would propel Australia to become a characterisation nexus of the laser industry and usher in the era of faster telecommunication, enhanced sensors and high-precision manufacturing.Read moreRead less
Unshackling solitons through ultimate dispersion control. The project aims to generate and investigate several novel families of self-stabilising optical pulses by using a unique fibre laser we recently devised. By developing the associated theoretical models, the team will transform conceptual and experimental knowledge of nonlinear physics, providing deep insights into fibre lasers and the pulses they can emit. The expected outcomes are a complete understanding of entirely novel families of op ....Unshackling solitons through ultimate dispersion control. The project aims to generate and investigate several novel families of self-stabilising optical pulses by using a unique fibre laser we recently devised. By developing the associated theoretical models, the team will transform conceptual and experimental knowledge of nonlinear physics, providing deep insights into fibre lasers and the pulses they can emit. The expected outcomes are a complete understanding of entirely novel families of optical pulses, and of the degree to which the energy required to generate these pulses can be reduced. Reducing this energy means that these pulses can perform the same function at lower power, which will enable the emergence of new applications that will play powerful roles in the 21st-century economy.Read moreRead less
Ultra-low-loss fluoride glass optical fibres for the future global network. The transmission loss of silica optical fibres limits the capacity of the global internet. Fluoride glass fibres have the potential of reducing the loss by more than 10 times. This project aims to overcome two of the technological challenges of the ultra-low-loss fluoride fibre optics network: (1) commercial-scale manufacturing of improved fibres and (2) signal amplification at 2.3μm. By generating new fundamental knowle ....Ultra-low-loss fluoride glass optical fibres for the future global network. The transmission loss of silica optical fibres limits the capacity of the global internet. Fluoride glass fibres have the potential of reducing the loss by more than 10 times. This project aims to overcome two of the technological challenges of the ultra-low-loss fluoride fibre optics network: (1) commercial-scale manufacturing of improved fibres and (2) signal amplification at 2.3μm. By generating new fundamental knowledge on rare-earth transitions and glass crystal formation, expected outcomes include innovative fibre fabrication methods optimised for space manufacturing. Benefits will include enhanced internet capacity with lower energy requirements, and opportunities for sovereign capability in fluoride fibre fabrication in Australia.Read moreRead less
Towards non-thermal hydrogen-boron fusion. Laser-induced non-thermal fusion of hydrogen and boron 11 is a promising approach to reach practical sustainable energy generation. In addition, being aneutronic, this specific fusion reaction virtually avoids the deleterious environmental impact associated with high energy neutron radiation. The recent observation of this reaction under non-thermal conditions is not only exciting but begs for a better understanding of its dynamics. This industry suppor ....Towards non-thermal hydrogen-boron fusion. Laser-induced non-thermal fusion of hydrogen and boron 11 is a promising approach to reach practical sustainable energy generation. In addition, being aneutronic, this specific fusion reaction virtually avoids the deleterious environmental impact associated with high energy neutron radiation. The recent observation of this reaction under non-thermal conditions is not only exciting but begs for a better understanding of its dynamics. This industry supported proposal thus aims at establishing an experimentally-proven analysis framework underpinning the future development of a viable hydrogen-boron fusion reactor. In the long term, its successful implementation would constitute a sea change by providing a virtually limitless source of energy.Read moreRead less
Seeing the light: high-power visible-light generation using silicate fibre. Unlike their near-infrared counterparts, visible-light-emitting lasers are inefficient and complicated, impacting their broader deployment in industry, medicine, and telecommunications. To address this, we will create a new class of laser and amplifier based on an entirely new doped silicate glass fibre that will display low background loss and resilience to photodegradation from high-power visible light. This will solve ....Seeing the light: high-power visible-light generation using silicate fibre. Unlike their near-infrared counterparts, visible-light-emitting lasers are inefficient and complicated, impacting their broader deployment in industry, medicine, and telecommunications. To address this, we will create a new class of laser and amplifier based on an entirely new doped silicate glass fibre that will display low background loss and resilience to photodegradation from high-power visible light. This will solve one of the last important problems in fibre laser research. The primary outcome will be a series of high-power continuous-wave, ultrashort-pulse, all-fibre lasers emitting at yellow and red wavelengths, with significant benefits for space, defence, manufacturing, and human health.Read moreRead less
Novel source of excited metastable atoms for Atom Trap Trace Analysis. This project aims to understand and to control light-induced processes in atoms by using finely shaped and tailored laser pulses, focusing on efficient production of excited metastable atoms. This is critical for efficient Atom Trap Trace Analysis, the most advanced technique for dating ground water and geological samples. Expected outcomes of this project include new and enhanced knowledge of physics of light-matter interact ....Novel source of excited metastable atoms for Atom Trap Trace Analysis. This project aims to understand and to control light-induced processes in atoms by using finely shaped and tailored laser pulses, focusing on efficient production of excited metastable atoms. This is critical for efficient Atom Trap Trace Analysis, the most advanced technique for dating ground water and geological samples. Expected outcomes of this project include new and enhanced knowledge of physics of light-matter interactions, developing an efficient, clean source of excited metastable atoms, and integrating that source into the Australian National Facility for dating geological samples. This should provide significant benefits, such as significant improvement of operational efficiency and productivity of that facility.Read moreRead less