Maintenance Method Using 1650-nm Wavelength Band for Optical Fiber Cable Networks Nakao, Naoki ; Izumita, Hisashi ; Inoue, Takashi ; Enomoto, Yoshitaka ; Araki, Noriyuki ; Tomita, Nobuo Abstract Publication: Journal of Lightwave Technology Pub Date: October 2001 DOI: 10.1109/50.956138 Bibcode: 2001JLwT...19.1513N