Asymmetric InP-based structures for high power laser diodes at 1400-1500 nm for pumping optical amplifiers used in communication systems. This project is aimed at obtaining high power, single mode 1400-1500 nm wavelength laser diodes using a novel design of asymmetric InP-based structures. These devices are in great demand for pumping of erbium-doped and Raman amplifiers for powering the next generation of dense wavelength division multiplexing optical networks. The low modal gain (confinement f ....Asymmetric InP-based structures for high power laser diodes at 1400-1500 nm for pumping optical amplifiers used in communication systems. This project is aimed at obtaining high power, single mode 1400-1500 nm wavelength laser diodes using a novel design of asymmetric InP-based structures. These devices are in great demand for pumping of erbium-doped and Raman amplifiers for powering the next generation of dense wavelength division multiplexing optical networks. The low modal gain (confinement factor) of this asymmetric structure is expected to reduce internal losses and hence increase the output power with better thermal dissipation. Single mode could be obtained by careful design in the trade-off between filamentation and threshold current. Ion implantation is also proposed to suppress higher order modes.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
Centre for Quantum Computer Technology. Development of a quantum computer (QC) for massively parallel computing is one of the major challenges in science and engineering this century. Since 2000 the Centre has achieved two major breakthroughs in this field: constructing the key functional element of a silicon solid-state QC; and co-inventing a scheme for efficient linear optics QC. The proposed CoE aims to align these two nationally co-ordinated research programs with the world's existing comput ....Centre for Quantum Computer Technology. Development of a quantum computer (QC) for massively parallel computing is one of the major challenges in science and engineering this century. Since 2000 the Centre has achieved two major breakthroughs in this field: constructing the key functional element of a silicon solid-state QC; and co-inventing a scheme for efficient linear optics QC. The proposed CoE aims to align these two nationally co-ordinated research programs with the world's existing computer and IT industries to realise a fault-tolerant multiple qubit quantum processor with integrated control and qubit chips, and develop a scaleable optical quantum processor providing significant economic benefit to Australia.Read moreRead less
Optical Semiconductors for next-generation lasers, optical processors, and integrated optical chips. We are on the verge of an optical processing revolution. The silicon industry evolved from valves to transistors and finally to processors - Optical processing is the next step in the evolution of lasers from gas to solid state, and ultimately to integrated optical chips. Australia had a significant lead in semiconductors during the 1970?s, but unfortunately lost this lead due to a lack of local ....Optical Semiconductors for next-generation lasers, optical processors, and integrated optical chips. We are on the verge of an optical processing revolution. The silicon industry evolved from valves to transistors and finally to processors - Optical processing is the next step in the evolution of lasers from gas to solid state, and ultimately to integrated optical chips. Australia had a significant lead in semiconductors during the 1970?s, but unfortunately lost this lead due to a lack of local market. The emergence of biotechnology and telecommunications offer strong local markets for this new integrated optical technology. This project aims to create a world-leading Research capability in Australia to drive the evolution of integrated optoelectronics, and provide a commercial path to create a leading Australian industry.Read moreRead less
Integrated microresonator based quantum technology. We will develop new 21st century physical technologies able to control the microscopic quantum world. These quantum technologies will build off world leading techniques to confine and manipulate light on a silicon chip, and have broad ramifications for future computing, medical, and sensing systems. New quantum architectures will be developed for information science, promising vast improvements over current systems; and new biological sensing s ....Integrated microresonator based quantum technology. We will develop new 21st century physical technologies able to control the microscopic quantum world. These quantum technologies will build off world leading techniques to confine and manipulate light on a silicon chip, and have broad ramifications for future computing, medical, and sensing systems. New quantum architectures will be developed for information science, promising vast improvements over current systems; and new biological sensing systems with world leading sensitivity will be implemented with important applications in the early detection of debilitating diseases. This research will raise Australia's profile as a world leader in science and technology, building on our already significant presence in quantum technology.Read moreRead less
Diamond Based Quantum Information Processing. The explosive growth in ideas for applications of quantum mechanics to practical devices for information processing has been a worldwide phenomenon of the past 4 years. A leading material which promises many of the desirable quantum properties is diamond. We aim to build on our extensive expertise in fundamental diamond research to design, fabricate and analyse novel quantum devices made from diamond. We will seek to attain the glittering prize of ....Diamond Based Quantum Information Processing. The explosive growth in ideas for applications of quantum mechanics to practical devices for information processing has been a worldwide phenomenon of the past 4 years. A leading material which promises many of the desirable quantum properties is diamond. We aim to build on our extensive expertise in fundamental diamond research to design, fabricate and analyse novel quantum devices made from diamond. We will seek to attain the glittering prize of constructing diamond devices that will absorb, store and re-emit single light-photons with revolutionary applications to information storage and processing.Read moreRead less
Diamond Based Quantum Information Processing. The explosive growth in ideas for applications of quantum mechanics to practical devices for information processing has been a worldwide phenomenon of the past 4 years. A leading material which promises many of the desirable quantum properties is diamond. In collaboration with our Israeli colleagues we will seek to attain the glittering prize of constructing diamond devices that will absorb, store and re-emit single light-photons with revolutionary ....Diamond Based Quantum Information Processing. The explosive growth in ideas for applications of quantum mechanics to practical devices for information processing has been a worldwide phenomenon of the past 4 years. A leading material which promises many of the desirable quantum properties is diamond. In collaboration with our Israeli colleagues we will seek to attain the glittering prize of constructing diamond devices that will absorb, store and re-emit single light-photons with revolutionary applications to information storage and processing.Read moreRead less