Nature Communications 6: Article number: 10249 (2015); Published: 22 December 2015; Updated: 1 February 2016

The affiliation details for Davide Boschetto are incorrect in this article. The correct affiliation details for this author are given below:

Laboratoire d’Optique Appliquée, ENSTA ParisTech, CNRS, Ecole polytechnique, Université Paris-Saclay, 828 boulevard des Maréchaux, 91762 Palaiseau cedex, France.