Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/171189
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An Optical fibre-based frequency dissemination network for Australia
Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (5th : 2011) (1 - 5 May 2011 : San Fransisco, CA)
2011 Joint Conference of the IEEE International Frequency Control Symposium & European Frequency and Time Forum : Hyatt Regency San Fransisco, May 1-5, 2011, San Fransisco, California, USA : proceedings
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range comparison of frequency standards to high precision and providing reference signals for a wide range of applications. First results for transfer in the laboratory achieve a fractional frequency stability of 7×10⁻¹⁷ at an averaging time of 10⁴ s for the distribution of an 80 MHz radio frequency signal. We present details of the technique used to cancel noise introduced by the fibre, describe the all-digital radio-frequency phasemeter used to characterise performance, and outline plans for the further development of the network.