Experimental evaluation of the time and frequency crosstalk dependency in a 7-core multi-core fiber. - Luis, Ruben S.; Puttnam, Benjamin J.; Klaus, Werner; Mendinueta, Jose Manuel Delgado; Awaji, Yoshinari; Wada, Naoya; Kanno, Atsushi; Kawanishi, Tetsuya; Nakanishi, Tetsuya; Hayashi, Tetsuya; Sasaki, Takashi (2015)