title: WDM Transmission over 320 km EDFA-Amplified SSMF Using 30 Gb/s Return-to-Zero Optical Differential 8-Level Phase-Shift Keying (OD8PSK).
abstract: Fiber transmission of optical differential 8-level phase-shift keying (OD8PSK) signals is demonstrated for the first time. Co-polarized 8 WDM channels of 10 Giga-symbol/s or 30 Gb/s return-to-zero (RZ) OD8PSK signals with a channel spacing of 50 GHz were transmitted over 320 km of standard single mode fiber (SSMF) with an EDFA spacing of 80 km. The BER of the worst WDM channel after transmission of 320 km was 2.3x10-5.
authors.forename: Cheolhwan
authors.initials: C
authors.lastname: Kim
authors.forename: Gilad
authors.initials: G
authors.lastname: Goldfarb
authors.forename: Yan
authors.initials: Y
authors.lastname: Han
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Li
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Li
authors.forename: Guifang
authors.initials: G
authors.lastname: Li