Modal approach of photon correlations in lattices of coupled waveguides Christophe Minot, Jean-Marie Moison, Alexios Beveratos, Isabelle Robert-Philip and Nadia Belabas Eur. Phys. J. D, 69 2 (2015) 42 Published online: 12 February 2015 DOI: 10.1140/epjd/e2014-50716-y