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Precision length measurement using an all-digital phasemeter for heterodyne laser interferometry

Gray, Malcolm B; Hsu, Magnus; Littler, Ian C M; Warrington, Richard B; Herrmann, Jan; Shaddock, Daniel


We report on an all-digital radio-frequency phasemeter for application in precision length measurements using heterodyne laser interferometry [1]. Our phasemeter has a phase sensitivity of 200 nrad/√Hz at signal frequencies of 0.2 Hz and above. We demon

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
Source: 2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf.
DOI: 10.1109/IQEC-CLEO.2011.6193936


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