Group refractive index and group velocity dispersion measurement by complex master slave interferometry Rivet, Sylvain ; Bradu, Adrian ; Bairstow, Fiona ; Forrière, Hisham ; Podoleanu, Adrian Abstract Publication: Optics Express Pub Date: August 2018 DOI: 10.1364/OE.26.021831 Bibcode: 2018OExpr..2621831R