Optical switchcubes for communications in parallel processors P. Chavel, N. de Beaucoudrey, A. Bellemain, L. Rudolph, I. Exman, Y. Houzelle and J. M. Vanzo Ann. Phys. Fr., 24 3 (1999) 197-215 Published online: 15 May 1999 DOI: 10.1051/anphys:199903011