Microwave-modulated optical systems for free-space and undersea communications. Although offering flexible, rapid deployment, free space and underwater comunications have not kept up with progress in optical fibre communications, and current systems are signficantly restricted in range and data rate. To address these needs, we will develop novel laser systems using coherent detection, with infrared output for eyesafe transmission in air, and blue-green output for transmission underwater. The s ....Microwave-modulated optical systems for free-space and undersea communications. Although offering flexible, rapid deployment, free space and underwater comunications have not kept up with progress in optical fibre communications, and current systems are signficantly restricted in range and data rate. To address these needs, we will develop novel laser systems using coherent detection, with infrared output for eyesafe transmission in air, and blue-green output for transmission underwater. The signal is a microwave modulation on the optical carrier, which permits longer-range transmission while maintaining signal coherence. Key advantages include increased detection sensitivity, and potential to scale up the modulation frequency and the power for higher data rates and longer propagation distance.Read moreRead less
Creation of New Precision Optical and Microwave Technologies and their Application to Testing the Fundamental of Physics. Clocks and oscillators are crucial for the highest precision scientific and industrial measurements and are the foundation of modern communications technology. Recent developments in laser-cooled optical clocks promise a wave of revolutionary changes to global navigation, timekeeping and precision measurement. Our group has already achieved world's-best performance in this f ....Creation of New Precision Optical and Microwave Technologies and their Application to Testing the Fundamental of Physics. Clocks and oscillators are crucial for the highest precision scientific and industrial measurements and are the foundation of modern communications technology. Recent developments in laser-cooled optical clocks promise a wave of revolutionary changes to global navigation, timekeeping and precision measurement. Our group has already achieved world's-best performance in this field. To stay at the forefront of this wave we propose a broad-ranging program of research aimed at:
- new clocks of 100 times higher performance than any existing clock,
- development of extremely low noise photonic oscillators,
- the application of these new technologies to test the foundations of Physics, including involvement in a space-based experiment.
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Passively switched mid-infrared fibre lasers using saturable absorbers placed internally or externally to the geometry of the fibre. This project will create new pulsed mid-infrared fibre lasers based on original and recently developed passive switching techniques. An original class of fibre laser systems will be shown that is based on the internal placement of saturable absorbers within the optical fibre itself. A configuration such as this will enable the production of very simple pulsed laser ....Passively switched mid-infrared fibre lasers using saturable absorbers placed internally or externally to the geometry of the fibre. This project will create new pulsed mid-infrared fibre lasers based on original and recently developed passive switching techniques. An original class of fibre laser systems will be shown that is based on the internal placement of saturable absorbers within the optical fibre itself. A configuration such as this will enable the production of very simple pulsed laser systems of high efficiency and potentially high power. This will lead into the development of practical pulsed oscillator systems the output of which can be used directly or optically amplified for applications requiring high power.Read moreRead less
Compact Tunable Visible Lasers - New Approaches to Phase-Matching. Australia will benefit significantly from this innovation in lasers and especially fibre lasers. Optical fibre devices are a major area of our capability in world-leading research and commercialisation. Through commercialisation we will directly benefit economically in terms of exports and jobs. We will also benefit from commercial exploitation of applications in biomedicine, security and environmental monitoring. Students will b ....Compact Tunable Visible Lasers - New Approaches to Phase-Matching. Australia will benefit significantly from this innovation in lasers and especially fibre lasers. Optical fibre devices are a major area of our capability in world-leading research and commercialisation. Through commercialisation we will directly benefit economically in terms of exports and jobs. We will also benefit from commercial exploitation of applications in biomedicine, security and environmental monitoring. Students will be trained in an area important for Australian research and high technology industry. Australia's position as a world-leader in optics and photonics will be strengthened .Read moreRead less
Optical parametric processes in randomized nonlinear photonic structures. This project will have an impact on understanding of the nonlinear optical effects in micron and sub-micron structures providing knowledge for potential practical applications. Innovative ideas emanating from this program will increase the national and international standing of the ANU and strengthen the reputation of Australia in the field of nonlinear photonics. The project will expand existing and create new collaborati ....Optical parametric processes in randomized nonlinear photonic structures. This project will have an impact on understanding of the nonlinear optical effects in micron and sub-micron structures providing knowledge for potential practical applications. Innovative ideas emanating from this program will increase the national and international standing of the ANU and strengthen the reputation of Australia in the field of nonlinear photonics. The project will expand existing and create new collaborative links with high profile international partners. It will also provide training and experience in the cutting edge research for graduate and undergraduate students.Read moreRead less
Light-Matter Interactions In Nanoparticle-doped Microstructured Polymer Fibres. Microstructured optical fibres have been defined as the 'next generation' of optical fibres. This proposal offers the opportunity to make major advances in this dynamic new area, not only changing the fibre properties by means of its microstructured but also by its material properties. The proposed research will enable us to fabricate new types of optical fibre by exploiting three completely different technologies: p ....Light-Matter Interactions In Nanoparticle-doped Microstructured Polymer Fibres. Microstructured optical fibres have been defined as the 'next generation' of optical fibres. This proposal offers the opportunity to make major advances in this dynamic new area, not only changing the fibre properties by means of its microstructured but also by its material properties. The proposed research will enable us to fabricate new types of optical fibre by exploiting three completely different technologies: polymer materials, microstructured polymer fibres (mPOF) and nanoparticles. This project will build on our existing success in developing mPOF, and create major new opportunities, both in fundamental science and in applications that could and would be commercialised.Read moreRead less
Advancing x-ray imaging into new dimensions using interferometry and phase-space tomography. Synchrotron science and nanofabrication technologies are priority investment areas for most industrial countries including Australia. This research program takes advantages of recent progress in these fields and aims to advance x-ray imaging techniques of high sensitivity and low radiation dose and retrieve all extractable information of an object encoded in a wavefield. The development of these techniqu ....Advancing x-ray imaging into new dimensions using interferometry and phase-space tomography. Synchrotron science and nanofabrication technologies are priority investment areas for most industrial countries including Australia. This research program takes advantages of recent progress in these fields and aims to advance x-ray imaging techniques of high sensitivity and low radiation dose and retrieve all extractable information of an object encoded in a wavefield. The development of these techniques is critical to future opportunities of frontier discoveries of the biological, nano and atomic world. Its application includes structural biology, medical diagnosis, biomedicine, material sciences and many other fields.Read moreRead less
Singular optics of polychromatic light. This project targets fundamental research in the emerging field of nonlinear singular optics with polychromatic light. It underpins new technological advances in the field of photonics, where Australia has built strong expertise and plays a significant role in the international development. This research will assist in the development of new type of photonic applications, where the spatial and spectral coherence of light plays a key role. Therefore our pro ....Singular optics of polychromatic light. This project targets fundamental research in the emerging field of nonlinear singular optics with polychromatic light. It underpins new technological advances in the field of photonics, where Australia has built strong expertise and plays a significant role in the international development. This research will assist in the development of new type of photonic applications, where the spatial and spectral coherence of light plays a key role. Therefore our project will contribute to the designated priority area 'Frontier Technologies for Building and Transforming Australian Industries' by providing fundamental understanding of novel physical phenomena and by building experimental and theoretical basis for new photonic technologies.Read moreRead less
Low threshold photonic crystal microlasers. The aims of this project are to develop detailed finite-difference time-domain numerical models of active photonic crystal structures, and to use them to optimise the design and performance of photonic-crystal-based devices, especially micro-cavity lasers. Photonic crystal microlasers have the potential to provide very efficient and low noise laser sources in micron-sized cavities, however the simplistic structures used to realise these lasers to date ....Low threshold photonic crystal microlasers. The aims of this project are to develop detailed finite-difference time-domain numerical models of active photonic crystal structures, and to use them to optimise the design and performance of photonic-crystal-based devices, especially micro-cavity lasers. Photonic crystal microlasers have the potential to provide very efficient and low noise laser sources in micron-sized cavities, however the simplistic structures used to realise these lasers to date provide sub-optimal performance. Innovative designs with improved performance will be developed by tailoring both the optical and thermal properties of planar photonic crystal stuctures. Devices designed during this project will subsequently be fabricated at facilities in France.Read moreRead less
Special Research Initiatives - Grant ID: SR0354519
Funder
Australian Research Council
Funding Amount
$30,000.00
Summary
Network for Optical and Quantum Science and Technology. This Network links world-class researchers involved with the investigation and application of light and atoms, particularly at the quantum level. Three ARC Centres of Excellence* will be linked and networked with other successful research groups in optics, including atom optics and Bose-Einstein condensation (BEC), quantum computing, optical switching, imaging, and interferometry. The Network-facilitated interactions will foster multidisci ....Network for Optical and Quantum Science and Technology. This Network links world-class researchers involved with the investigation and application of light and atoms, particularly at the quantum level. Three ARC Centres of Excellence* will be linked and networked with other successful research groups in optics, including atom optics and Bose-Einstein condensation (BEC), quantum computing, optical switching, imaging, and interferometry. The Network-facilitated interactions will foster multidisciplinary approaches linking the majority of the Australian optics community, and harnessing Australia's existing research excellence in optics to address major questions in optical and quantum science and technology.
* Quantum-Atom Optics (ACQAO), Quantum Computing Technology (CQCT), Ultrahigh Bandwidth Devices and Optical Systems (CUDOS).
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