Microfabrication of integrated silicon optical cross-switches interfaced with silica optical waveguides. Project aims to fabricate novel silicon based optical switches in the form of cantilevered mirrors integrated to interface with silica optical waveguides integrated collimation lens. Significantly, it paves the way for low cost integration of optical switches with array waveguides for an all-optical dynamically reconfigurable dense wavelength division multiplexing network used in modern broad ....Microfabrication of integrated silicon optical cross-switches interfaced with silica optical waveguides. Project aims to fabricate novel silicon based optical switches in the form of cantilevered mirrors integrated to interface with silica optical waveguides integrated collimation lens. Significantly, it paves the way for low cost integration of optical switches with array waveguides for an all-optical dynamically reconfigurable dense wavelength division multiplexing network used in modern broadband telecommunication systems. International market demand for such devises is enormous. Expected outcomes include the development of arrays of low loss 2x2 integrated optical waveguide cross-switches prototypes, securing the intellectual property rights and disseminating the work internationally.Read moreRead less
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
Development of a novel photonic reticulation system for cost efficient delivery of high bandwidth communication services to regional communities. The R&D and commercialisation of the DWDM-lite will have a significant impact on the efficiency of Australia's telecommunications industry with consequent flow-on effects to the productivity and competitiveness of Australian telecommunications industry. The availability of broadband telecommunications services to regional communities at service and ser ....Development of a novel photonic reticulation system for cost efficient delivery of high bandwidth communication services to regional communities. The R&D and commercialisation of the DWDM-lite will have a significant impact on the efficiency of Australia's telecommunications industry with consequent flow-on effects to the productivity and competitiveness of Australian telecommunications industry. The availability of broadband telecommunications services to regional communities at service and services levels to those of metropolitan customers is a recognised national priority. It lies at the core of the Australian Government's recently announced Connect Australia plan directing at regional community benefits in improved availability and affordability of broadband telecommunications services. The product will enhance Australian participation in the global equipment supply industryRead moreRead less
Analysis and Design of Multi-objective Optimal Multirate Filter Banks. Multirate filter banks are a fundamental subsystem and play a key role in many applications in information technology, such as digital communications and digital audio and video signal processing. Most of the existing design methods of multirate filter banks are based on idealized operation conditions, so often they do not provide practically desirable performance. This project will develop innovative design methods for multi ....Analysis and Design of Multi-objective Optimal Multirate Filter Banks. Multirate filter banks are a fundamental subsystem and play a key role in many applications in information technology, such as digital communications and digital audio and video signal processing. Most of the existing design methods of multirate filter banks are based on idealized operation conditions, so often they do not provide practically desirable performance. This project will develop innovative design methods for multirate filter banks under the worst operational conditions and multiple conflicting design objectives. The results will fill in the gap between the theoretical design and the practical requirements to provide enhanced performance of systems using multirate filter banks.Read moreRead less