Salathe, R. P.Gilgen, H.Bodmer, G.2009-01-202009-01-202009-01-20199610.1364/OL.21.001006https://infoscience.epfl.ch/handle/20.500.14299/34039WOS:A1996UU28400032Coupled-mode propagation in multicore fibers characterized by optical low-coherence reflectometrytext::journal::journal article::research article