Application of Femtosecond Light Sources to Generation of Low Noise Microwave Signals. The main goal of the research project is to develop prototypes of photonic oscillators capable of generating spectrally pure signals both at optical and microwave frequencies. The project is also aimed at understanding noise mechanisms affecting frequency stability of classical microwave oscillators based on sapphire loaded cavity resonators. By cryogenically cooling such resonators we plan to create a new fam ....Application of Femtosecond Light Sources to Generation of Low Noise Microwave Signals. The main goal of the research project is to develop prototypes of photonic oscillators capable of generating spectrally pure signals both at optical and microwave frequencies. The project is also aimed at understanding noise mechanisms affecting frequency stability of classical microwave oscillators based on sapphire loaded cavity resonators. By cryogenically cooling such resonators we plan to create a new family of extremely low noise and economically viable microwave signal sources. The research proposed will enrich the field of oscillator frequency control, give rise to new techniques for precision noise measurements and reinforce Australia's position at the forefront of microwave and photonic science.Read moreRead less
Micro-engineered Optical Fibre Clocks. Clocks and oscillators are crucial components of all communication, navigation and computing technologies. Improvements in the performance of these internal clocks results in improvement in the performance of the dependent system, and are thus of high economic and technological value. A great need presently exists for compact and high performance clocks for improving optical fibre communication systems. The goal of this project is join the expertise of t ....Micro-engineered Optical Fibre Clocks. Clocks and oscillators are crucial components of all communication, navigation and computing technologies. Improvements in the performance of these internal clocks results in improvement in the performance of the dependent system, and are thus of high economic and technological value. A great need presently exists for compact and high performance clocks for improving optical fibre communication systems. The goal of this project is join the expertise of the University of Western Australia group with that of the University of Bath team to develop a new type of clock to fulfil this need.Read moreRead less
Development of Optical Clocks and Their Applications to Precision Frequency Measurements and Time Keeping. The goal of the proposed international researcher exchange program is to enhance the ongoing collaboration between the Frequency Standards and Metrology (FSM) Group at the University of Western Australia and leading US research institutions, including National Institute of Standards and Technology (NIST) in the field of (i) laser cooled atomic frequency standards, (ii) methods of optical ....Development of Optical Clocks and Their Applications to Precision Frequency Measurements and Time Keeping. The goal of the proposed international researcher exchange program is to enhance the ongoing collaboration between the Frequency Standards and Metrology (FSM) Group at the University of Western Australia and leading US research institutions, including National Institute of Standards and Technology (NIST) in the field of (i) laser cooled atomic frequency standards, (ii) methods of optical frequency synthesis and coherent time transfer between widely separated parts of electromagnetic spectrum and (iii) generation of low noise microwave signals directly from frequency stabilised ultra-fast pulsed lasers.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775637
Funder
Australian Research Council
Funding Amount
$450,000.00
Summary
An Australian Attosecond Science Facility. The laser facility requested here will provide Australian researchers with the ability to take snapshots of physical and biological processes at unprecedented time resolution. Such a facility will enable Australian researchers to remain competitive and continue to contribute significantly to scientific research on an international scale. The facility will provide excellent training for research higher degree students, preparing them for work in high-tec ....An Australian Attosecond Science Facility. The laser facility requested here will provide Australian researchers with the ability to take snapshots of physical and biological processes at unprecedented time resolution. Such a facility will enable Australian researchers to remain competitive and continue to contribute significantly to scientific research on an international scale. The facility will provide excellent training for research higher degree students, preparing them for work in high-tech industries based on cutting-edge discoveries in physics and biology.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0221428
Funder
Australian Research Council
Funding Amount
$530,000.00
Summary
A Transportable Optical Frequency Counter, Synthesizer and Super-Continuum Generator (OFCSSG). The generation of ultra-short light pulses of just a few femtoseconds (one thousand-trillionth of a second) in duration has enabled applications in a wide range of fields, but complexity and cost has limited availability. This project will employ recently developed optical fibre and solid-state laser technology to create a cost-effective compact transportable facility of highly coherent, ultra-broadba ....A Transportable Optical Frequency Counter, Synthesizer and Super-Continuum Generator (OFCSSG). The generation of ultra-short light pulses of just a few femtoseconds (one thousand-trillionth of a second) in duration has enabled applications in a wide range of fields, but complexity and cost has limited availability. This project will employ recently developed optical fibre and solid-state laser technology to create a cost-effective compact transportable facility of highly coherent, ultra-broadband radiation. The source will enable new research and substantially enrich existing research in optical time standards and metrology, in-vivo biological imaging, and ultrafast spectroscopy. No such facility is presently available in AustraliaRead moreRead less
Frequency stabilisation in the Extremely High Frequency band. All precision communication and measurement systems (i.e. radar and navigation) rely on high quality oscillator technology. Any improvement in oscillator performance has a direct impact on the performance of the system and hence is of potential economic benefit. This project will realise the most stable frequencies ever produced in the underused Extremely High Frequency band, which is also important for space communications and naviga ....Frequency stabilisation in the Extremely High Frequency band. All precision communication and measurement systems (i.e. radar and navigation) rely on high quality oscillator technology. Any improvement in oscillator performance has a direct impact on the performance of the system and hence is of potential economic benefit. This project will realise the most stable frequencies ever produced in the underused Extremely High Frequency band, which is also important for space communications and navigation technology. System enhancement will include, better angular resolution, higher bandwidths, faster transmission rates and narrower beam widths without the susceptibility of absorption apparent from the optical domain.Read moreRead less
The Quest for Ultimate Measurement Precision. Precision measurement is the foundation upon which modern technological society is built. The highest quality measurement devices rely on stable clocks for their operation. The group's existing research has been aimed at developing some of the world's most precise measurement tools based on clocks and lasers. In parallel with this, other scientists have developed the means for exquisite control of light on the microscopic scale. By combining these tw ....The Quest for Ultimate Measurement Precision. Precision measurement is the foundation upon which modern technological society is built. The highest quality measurement devices rely on stable clocks for their operation. The group's existing research has been aimed at developing some of the world's most precise measurement tools based on clocks and lasers. In parallel with this, other scientists have developed the means for exquisite control of light on the microscopic scale. By combining these two technologies, both of which lie at the extreme limit of precision, the group will develop a new generation of technology for fundamental science objectives as well as for industrial needs.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100009
Funder
Australian Research Council
Funding Amount
$455,000.00
Summary
Ultra-precision cutting and polishing machines for fabricating high-Q crystalline resonators. The proposed facility will equip Australian researchers with the capability to machine and polish optical crystalline materials down to atomic-level smoothness. The availability of this technology will enable the fabrication of ultra-sensitive metrological sensors, state-of-the-art photonic components, and quantum devices. Precision metrology is an integral component of many industries and it underpins ....Ultra-precision cutting and polishing machines for fabricating high-Q crystalline resonators. The proposed facility will equip Australian researchers with the capability to machine and polish optical crystalline materials down to atomic-level smoothness. The availability of this technology will enable the fabrication of ultra-sensitive metrological sensors, state-of-the-art photonic components, and quantum devices. Precision metrology is an integral component of many industries and it underpins a modern, technically advanced society. With this facility Australian researchers will lead the world in the fabrication of optical crystalline devices for a broad range of industrial and research applications.Read moreRead less
Measurement of the spatial distribution of temperature and velocity in lakes using Acoustic Tomography. This project will investigate the use of acoustic tomography in lakes to continuously measure the lake-wide distribution of temperature and velocity. The challenges with lake acoustic tomography are the accuracy required in the travel time measurements over shorter distances, acoustic losses due to reflections and ensuring enough rays travel through the thermocline, the region of greatest inte ....Measurement of the spatial distribution of temperature and velocity in lakes using Acoustic Tomography. This project will investigate the use of acoustic tomography in lakes to continuously measure the lake-wide distribution of temperature and velocity. The challenges with lake acoustic tomography are the accuracy required in the travel time measurements over shorter distances, acoustic losses due to reflections and ensuring enough rays travel through the thermocline, the region of greatest interest in lakes. A pilot experiment in a deep lake will investigate the quality of travel time measurements computed from rays travelling through the thermocline of a strongly stratified lake. This has wide applications for the water quality management of lakes and reservoirs.Read moreRead less
Application of ultra-high stability cryogenic sapphire oscillators to Very Long Baseline Interferometry. This project will develop a state-of-the-art commercial prototype of the cryogenic sapphire oscillator (CSO) optimised for use at remote sites. Proof of operation will be applied to the important niche market of Very-Long Baseline Interferometry (VLBI) radio astronomy, with improvements in image quality. The research will also significantly benefit the Australian bid for the SKA project, as ....Application of ultra-high stability cryogenic sapphire oscillators to Very Long Baseline Interferometry. This project will develop a state-of-the-art commercial prototype of the cryogenic sapphire oscillator (CSO) optimised for use at remote sites. Proof of operation will be applied to the important niche market of Very-Long Baseline Interferometry (VLBI) radio astronomy, with improvements in image quality. The research will also significantly benefit the Australian bid for the SKA project, as the CSO is the only technology capable of synchronising the outputs of the telescopes arrays to the required signal to noise to attain the required image quality. The project will further Australia's status in radio astronomy as a world leader and add to our exports of precision scientific instruments.Read moreRead less