Photonic Crystal Signal Processing and Antenna Technologies. The information society in which we live requires increasingly high bandwidth, low cost communications. This project addresses two critically important technologies needed to meet these demands: signal processing devices and antennas. These devices will be designed using three-dimensional photonic crystals, which provide excellent possibilities for low-cost, highly integrated photonic circuits. Working prototypes will be built at micro ....Photonic Crystal Signal Processing and Antenna Technologies. The information society in which we live requires increasingly high bandwidth, low cost communications. This project addresses two critically important technologies needed to meet these demands: signal processing devices and antennas. These devices will be designed using three-dimensional photonic crystals, which provide excellent possibilities for low-cost, highly integrated photonic circuits. Working prototypes will be built at microwave frequencies, but due to the scalability of electromagnetic theory these results are also valid in the optical domain. The outcomes of this project will be accurate theoretical models and empirical tests for new technologies that satisfy the future needs of the information society.Read moreRead less
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
Enabling next-generation high-efficiency visible laser sources through advanced waveguide engineering. Lithium niobate has the potential to become the silicon of the optoelectronic industry. In order to realise its potential, fundamental problems associated with long term stability and cost of integration need to be solved. This project will develop a new hybrid fabrication platform that circumvents the traditional approaches pursued in the past for introducing waveguides into a lithium niobate ....Enabling next-generation high-efficiency visible laser sources through advanced waveguide engineering. Lithium niobate has the potential to become the silicon of the optoelectronic industry. In order to realise its potential, fundamental problems associated with long term stability and cost of integration need to be solved. This project will develop a new hybrid fabrication platform that circumvents the traditional approaches pursued in the past for introducing waveguides into a lithium niobate chip. This platform will enable the production of robust, low cost light sources for fields as diverse as biotechnology, environmental sensing and displays. This project will lead to new IP that will establish Australia as a leader in this field.Read moreRead less
Laser Micro-Fabrication of Optoelectronic Devices. The project aims to develop new techniques of laser direct-write fabrication of microstructures (1-100 micron in size) in crystalline materials, and to apply these to fabricating periodically-poled nonlinear crystals for optical frequency conversion. These techniques will use laser ablative surface profiling with subsequent electric field poling, and a completely new process of laser temperature profiling with simultaneous field poling, to writ ....Laser Micro-Fabrication of Optoelectronic Devices. The project aims to develop new techniques of laser direct-write fabrication of microstructures (1-100 micron in size) in crystalline materials, and to apply these to fabricating periodically-poled nonlinear crystals for optical frequency conversion. These techniques will use laser ablative surface profiling with subsequent electric field poling, and a completely new process of laser temperature profiling with simultaneous field poling, to write periodic domains in lithium niobate. Such laser direct-write processing is well suited to rapid prototyping and will enable investigation of novel periodically-poled structures, for example, chirped, fanned and multiplexed structures for nonlinear spectral and temporal conversion.Read moreRead less
Optical parametric amplifiers with exceptional qualities using highly nonlinear optical fibre. Current optical fibre networks use only a fraction of their capacity. This is in part because optical amplifiers with enough bandwidth do not exist. However, it will soon become necessary to exploit all of this capacity. This project will create a new highly nonlinear optical fibre with very low loss and tailored dispersion properties. This will then be used to make an optical fibre parametric ampli ....Optical parametric amplifiers with exceptional qualities using highly nonlinear optical fibre. Current optical fibre networks use only a fraction of their capacity. This is in part because optical amplifiers with enough bandwidth do not exist. However, it will soon become necessary to exploit all of this capacity. This project will create a new highly nonlinear optical fibre with very low loss and tailored dispersion properties. This will then be used to make an optical fibre parametric amplifier with a world record bandwidth, which will enable the full capacity of optical fibre to be exploited.Read moreRead less
Advanced Laser, Sensor and Diagnostic Technologies Using New Generation Micro- and Nano- Structured Fibres and Gratings. The project aims to provide the next generation of laser and sensor technologies, benefiting not only advanced instrument industries but also others involved with materials processing, sensing diagnostics, biomedicine and defence. The search for a universal model of light interactions with all photosensitive materials, coupled with a demonstration of nanotechnology within a fi ....Advanced Laser, Sensor and Diagnostic Technologies Using New Generation Micro- and Nano- Structured Fibres and Gratings. The project aims to provide the next generation of laser and sensor technologies, benefiting not only advanced instrument industries but also others involved with materials processing, sensing diagnostics, biomedicine and defence. The search for a universal model of light interactions with all photosensitive materials, coupled with a demonstration of nanotechnology within a fibre, will lead to new gratings and fibres that underpin these technologies as well as open up new techniques and processes such as practical radiation hardening of optical waveguides.Read moreRead less
Laboratory in a Fibre: diagnostic, sensing and telecommunications technologies. The lab-in-a-fibre aims to provide the next generation of diagnostic, sensing and telecommunications technologies. Mass production of km long optical fibre platforms for the lab-in-a-fibre offers cost competitive alternative to lab-on-a-chip technologies in applications where several diagnostic, sensing processes or component technologies are required. It will benefit not only advanced instrument industries but also ....Laboratory in a Fibre: diagnostic, sensing and telecommunications technologies. The lab-in-a-fibre aims to provide the next generation of diagnostic, sensing and telecommunications technologies. Mass production of km long optical fibre platforms for the lab-in-a-fibre offers cost competitive alternative to lab-on-a-chip technologies in applications where several diagnostic, sensing processes or component technologies are required. It will benefit not only advanced instrument industries but also others involved with materials processing, sensing diagnostics, biomedicine and defence. The overall integration within the program will provide the mechanism to create new, highly skilled Australian industries.Read moreRead less
Photonic Crystals and Microstructured Optical Fibres for Device Applications. Photonic crystals and microstructured optical fibres, which are amongst the most exciting fields of modern optics and photonics, are set to underpin developments in the next generation of ultrahigh-bandwidth communications systems, the functionalities of which will be truly all-optical. This project will bring together of two leading research groups in these areas, enhancing their collaboration, complementing their ex ....Photonic Crystals and Microstructured Optical Fibres for Device Applications. Photonic crystals and microstructured optical fibres, which are amongst the most exciting fields of modern optics and photonics, are set to underpin developments in the next generation of ultrahigh-bandwidth communications systems, the functionalities of which will be truly all-optical. This project will bring together of two leading research groups in these areas, enhancing their collaboration, complementing their expertise, and enabling them to develop new theoretical and computational tools to facilitate device applications. The program will coordinate research over a broad front and bring real benefits to young researchers in both France and Australia.Read moreRead less
Frozen linear and nonlinear light. Frozen light refers to the observation that light inside particular media can be much brighter than outside it, essentially because it bounced around many times before leaving. Such light has many advantages which have applications in optical signal processing, lasers, and in other optical devices. Until now frozen light has only been studied in a small range of geometries and only at low intensities. In this fundamental research project we will investigate fr ....Frozen linear and nonlinear light. Frozen light refers to the observation that light inside particular media can be much brighter than outside it, essentially because it bounced around many times before leaving. Such light has many advantages which have applications in optical signal processing, lasers, and in other optical devices. Until now frozen light has only been studied in a small range of geometries and only at low intensities. In this fundamental research project we will investigate frozen light, its generation and its properties at low and high intensities, systematically, and we will assess how it can be harnessed for potential applications.Read moreRead less
Mechanical stresses in holey fibres. The development of holey fibres constitutes arguably the most exciting development in fibre optics in recent years. We will analyze the mechanical stresses in these fibres, which, together with the optical calculations and associated experiments, will allow us to design novel fibre-based devices. This will allow Nufern to develop new products based on holey fibres.