title: Multi-stage optical FDM of 12-channel 10-Gb/s data with 20-GHz exact channel spacing using fiber cross-phase modulation with optical subcarrier signals.
abstract: A sequential optical frequency-division multiplexing technique using cross-phase modulation in fibers with exactly frequency-controlled optical subcarrier signals is proposed and demonstrated. 12 channels of 10-Gb/s ASK/DPSK signals with 20-GHz exact channel spacing are successfully multiplexed all-optically at 12 stages with 1-km intervals.
authors.affiliation: Fujitsu Laboratories Ltd., 4-1-1 Kamikodanaka, Kawasaki 211-8588, Japan. kato.tom@jp.fujitsu.com
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Kato
authors.forename: Ryo
authors.initials: R
authors.lastname: Okabe
authors.forename: Reinhold
authors.initials: R
authors.lastname: Ludwig
authors.forename: Robert
authors.initials: R
authors.lastname: Elschner
authors.forename: Colja
authors.initials: C
authors.lastname: Schubert
authors.forename: Shigeki
authors.initials: S
authors.lastname: Watanabe