Wiseman, Kieran B.Kissinger, ThomasTatam, Ralph P.2021-07-232021-07-232021-07-10Wiseman KB, Kissinger T, Tatam RP. (2021) Optical fibre-coupled displacement and angle measurements using range-resolved interferometry. In: 21st International Conference of the European Society for Precision Engineering and Nanotechnology (euspen), 7-10 June 2021, Copenhagen, Virtual Eventhttps://dspace.lib.cranfield.ac.uk/handle/1826/16929A novel approach to displacement and angle measurements that uses range-resolved interferometry to interrogate multiple interferometers is presented. Spatially offset beams are multiplexed onto the same delivery fibre using a very simple setup comprising of two stacked beamsplitters and the phase evaluation of these interferometers allows simultaneous measurement of both displacement and angular changes of a target surface. The operating principle of this technique and key design concepts are discussed. This approach, with its simple and compact fibre-coupled optical setup and ease of alignment, expands existing applications of laser interferometry, particularly for space-restricted environments, and its cost-effectiveness will be key to allowing widespread usage.enAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/InterferometryMeasurementOpticalMetrologyConference paper