title: Experimental demonstration of multi-degree colorless, directionless, contentionless ROADM for 127-Gbit/s PDM-QPSK transmission system.
abstract: We experimentally demonstrate the feasibility of a multi-degree colorless, directionless, and contentionless (C/D/C-less) ROADM node composed of high port count wavelength-selective switches and transponder aggregators using silica-based planar lightwave circuit technology. The experimental results show that the introduction of a C/D/C-less function to a multi-degree ROADM node induces no significant penalty in a 127-Gbit/s PDM-QPSK signal transmission.
authors.affiliation: NTT Network Innovation Laboratories, NTT Corporation, 1-1, Hikarinooka, Yokosuka, Kanagawa, 239-0874 Japan. sakamaki.youhei@lab.ntt.co.jp
authors.forename: Yohei
authors.initials: Y
authors.lastname: Sakamaki
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kawai
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Komukai
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Fukutoku
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Kataoka
authors.forename: Toshio
authors.initials: T
authors.lastname: Watanabe
authors.forename: Yuzo
authors.initials: Y
authors.lastname: Ishii