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Ground-based and Airborne Instrumentation for Astronomy IV
Optical fibres with octagonal, square and rectangular core shapes have been proposed as alternative to the circular fibres to link the telescopes to spectrographs in order to increase the accuracy of radial velocity measurements. Theoretically they offer better scrambling properties than their circular counterparts. First commercial octagonal fibres provided good near field scrambling gains. Unfortunately the far field scrambling did not show important figures. This article shows test resultsdoi:10.1117/12.927447 fatcat:jsinl2wjenbfblk24er57znm7u