[1]
E. Kuzin, J. Andrade Lucio, R. Rojas Laguna, B. Ibarra Escamilla, M. Basurto Pensado, ., and J. Sánchez Mondragón, The use of nonlinear polarization self-rotation for the optical switching in the nonlinear loop mirror, Rev. Mex. Fís. 43, (1996).