Ultra-high density permanent and/or erasable optical memory in photorefractive media formed by ultrafast laser pulses. A possibility to form tree-dimensional 10Tb-density optical memory based on permanent modification, or damage, of transparent dielectrics, using powerful femtosecond laser pulses has already been demonstrated by the Applicants. This project aims to improve the fundamental understanding of ultrafast laser formation of nano-bits using unique ability of photorefractive materials t ....Ultra-high density permanent and/or erasable optical memory in photorefractive media formed by ultrafast laser pulses. A possibility to form tree-dimensional 10Tb-density optical memory based on permanent modification, or damage, of transparent dielectrics, using powerful femtosecond laser pulses has already been demonstrated by the Applicants. This project aims to improve the fundamental understanding of ultrafast laser formation of nano-bits using unique ability of photorefractive materials to reversible change and the refractive index. We aim to find ways for controlling the storage time, density and the writing-reading-erasing rate without inducing damage in the material. The results will be applied to efficient formation of high-speed, high density, write-read-erase 3D optical memory for applications in the information technology.
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Developing New Clocks for Australia: Testing the Assumptions of Modern Physics. Clocks lie at the heart of all precise measurement devices; for example, they are the crucial elements in modern navigation and telecommunications systems. This project will develop three new clocks for Australia: a laser clock at the leading edge of technology, a novel and compact clock with commercial potential, and a microwave clock for use in the next generation of satellites. The performance advantage conferre ....Developing New Clocks for Australia: Testing the Assumptions of Modern Physics. Clocks lie at the heart of all precise measurement devices; for example, they are the crucial elements in modern navigation and telecommunications systems. This project will develop three new clocks for Australia: a laser clock at the leading edge of technology, a novel and compact clock with commercial potential, and a microwave clock for use in the next generation of satellites. The performance advantage conferred by our new devices can deliver economic benefits while also giving the possibility for scrutinizing the laws of physics for evidence that there is something beyond our present formulation.Read moreRead less
Manipulation and Shaping of Light in the Far-Field using Advanced Fresnel Fibres. This project will focus on developing and understanding further the recent invention of the Fresnel fibre, which is designed to overcome diffraction from the end of an optical fibre. More sophisticated designs and combinations will allow arbitrary shaping of the optical field exiting an optical fibre for numerous applications. The physical basis for such phenomena to be realised is the efficient degree of coherent ....Manipulation and Shaping of Light in the Far-Field using Advanced Fresnel Fibres. This project will focus on developing and understanding further the recent invention of the Fresnel fibre, which is designed to overcome diffraction from the end of an optical fibre. More sophisticated designs and combinations will allow arbitrary shaping of the optical field exiting an optical fibre for numerous applications. The physical basis for such phenomena to be realised is the efficient degree of coherent scattering possible in air-material fibre such as air-silica photonic crystal fibres. In conjunction advanced characterisation techniques will be developed.Read moreRead less
Miniaturised Adiabatic Light Processing Devices. The project will develop, model and analyse a range of miniaturised light-processing devices for optical communications applications that rely soley on their geometrical design for their optical functionality. Such devices are less complex than devices that rely on other physical phenomena for their operation, such as interference, resonance or grating phenomena. They have potential application to a wide range of applications including optical tel ....Miniaturised Adiabatic Light Processing Devices. The project will develop, model and analyse a range of miniaturised light-processing devices for optical communications applications that rely soley on their geometrical design for their optical functionality. Such devices are less complex than devices that rely on other physical phenomena for their operation, such as interference, resonance or grating phenomena. They have potential application to a wide range of applications including optical telecommunications, optical sensing and biophotonics. The major outcome will be a range of novel devices that are very compact, have very low optical power loss and process light signals in ways that either cannot be readily achieved by other approaches or are simpler than other approaches.Read moreRead less
Quantum Photonics with continuous laser beams - travel award. Quantum information and communication is a new paradigm in information technology which utilises quantum physics to improve current limitations in speed, security and fidelity of information transmission and processing, extending the present Electronics and Photonics devices. Future applications will include teleportation, cryptography and ultimately quantum computation. We propose to investigate these applications using continuous (C ....Quantum Photonics with continuous laser beams - travel award. Quantum information and communication is a new paradigm in information technology which utilises quantum physics to improve current limitations in speed, security and fidelity of information transmission and processing, extending the present Electronics and Photonics devices. Future applications will include teleportation, cryptography and ultimately quantum computation. We propose to investigate these applications using continuous (CW) laser beams and the Einstein-Podolsky-Rosen (EPR) quantum entanglement, which is generated via a pair of optical parametric oscillators. The advantage of CW over the established single photon technology is better detection efficiency, wider data bandwidth and a compatibility with existing photonics technology.Read moreRead less
Light-matter interactions in microstructured optical waveguides for nonlinear optical signal processing. The challenge of conceiving and constructing the necessary components and devices for the next generation of lightwave telecommunications systems is a profound one. This issue is urgent as the current operating principles of switches, filters and sources and other devices simply do not allow for the upgrade to the extremely high data transmission speeds that will be required. Using glass opti ....Light-matter interactions in microstructured optical waveguides for nonlinear optical signal processing. The challenge of conceiving and constructing the necessary components and devices for the next generation of lightwave telecommunications systems is a profound one. This issue is urgent as the current operating principles of switches, filters and sources and other devices simply do not allow for the upgrade to the extremely high data transmission speeds that will be required. Using glass optical fibres as the starting point, we will devise, demonstrate and analyze these novel components, leveraging microstructured optical fibre technology and novel fabrication techniques, which are among the most recent developments in optical fibre research.
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Fine Structured Optical Fibre Fabrication - Soot, Rheology and Nanostructure in Modified Chemical Vapour Deposition. For 30 years photonics and telecommunications have relied heavily on optical fibres made by Modified Chemical Vapour Deposition (MCVD), a complex, highly dynamic process with many interacting variables, which is still more art than science. The results are good enough for most purposes but the next generation of photonics demands fibres with intricate, precisely defined internal s ....Fine Structured Optical Fibre Fabrication - Soot, Rheology and Nanostructure in Modified Chemical Vapour Deposition. For 30 years photonics and telecommunications have relied heavily on optical fibres made by Modified Chemical Vapour Deposition (MCVD), a complex, highly dynamic process with many interacting variables, which is still more art than science. The results are good enough for most purposes but the next generation of photonics demands fibres with intricate, precisely defined internal structures. A multi-disciplinary team will elucidate and quantify the exact nature of the fundamental science underlying MCVD - of silicate soot formation, deposition and heat treatment - and translate this into reproducibly fabricated fine structured fibres with high optical and mechanical performance.Read moreRead less
Hypersensitisation and Patterned Photosensitivity in Glass. Recent developments involving holographically patterned photosensitivity in glass-based optical waveguides developed by our group can be extended to fabricate complex two-dimensional structures including planar waveguide photonic bandgap devices for applications in telecommunications, sensing and signal processing. These will include novel grating-array based 2-D DFB lasers and filters in rare-earth doped planar waveguides. Novel etchin ....Hypersensitisation and Patterned Photosensitivity in Glass. Recent developments involving holographically patterned photosensitivity in glass-based optical waveguides developed by our group can be extended to fabricate complex two-dimensional structures including planar waveguide photonic bandgap devices for applications in telecommunications, sensing and signal processing. These will include novel grating-array based 2-D DFB lasers and filters in rare-earth doped planar waveguides. Novel etching techniques to be used to enhance index contrast, as well as to characterise such devices, will be developed based on our recent observation of hydrogen-enhanced etching of glass. Such methods could potentially be applicable to not only photonic technologies but also semiconductor lithography of oxides.Read moreRead less
Centre for Ultrahigh-bandwidth Devices for Optical Systems. The Centre, through a ground-breaking research program, will in the next five years invent and develop a set of revolutionary optical devices and will integrate these devices onto a photonic chip, for the use in the next generation of ultra-high bandwidth optical telecommunications systems. These systems will dramatically improve online services to the Australian community in key areas such as health, education and business connectivity ....Centre for Ultrahigh-bandwidth Devices for Optical Systems. The Centre, through a ground-breaking research program, will in the next five years invent and develop a set of revolutionary optical devices and will integrate these devices onto a photonic chip, for the use in the next generation of ultra-high bandwidth optical telecommunications systems. These systems will dramatically improve online services to the Australian community in key areas such as health, education and business connectivity. Australia's high tech industry will benefit from the commercialisation opportunities arising from the Centre's research, and also from the creation of a pool of highly skilled ICT professionals.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347140
Funder
Australian Research Council
Funding Amount
$208,000.00
Summary
Picosecond optical probing and characterization of infrared and visible devices. The facility consists of a laser to generate short infrared pulses, and an oscilloscope and detectors to measure such pulses. It will be used to characterize and investigate a new generation of novel optical fibre devices and microstructures, which are to form the basis of the next generation of telecommunications systems, and also novel and unique laser types. The research and development of all of these devices ar ....Picosecond optical probing and characterization of infrared and visible devices. The facility consists of a laser to generate short infrared pulses, and an oscilloscope and detectors to measure such pulses. It will be used to characterize and investigate a new generation of novel optical fibre devices and microstructures, which are to form the basis of the next generation of telecommunications systems, and also novel and unique laser types. The research and development of all of these devices are receiving external funding (or are in negotiations therefore). The facility allows for high-speed and high-accuracy data acquisition, which makes it unique in Australia.Read moreRead less