title: Experimental demonstration of arrayed optical amplifiers with a shared pump laser for realizing colorless, directionless, contentionless ROADM.
abstract: We propose arrayed optical amplifiers that share a single pump laser with the aim of realizing full-add/drop colorless, directionless, contentionless ROADM nodes and demonstrate its feasibility in experiments. The experimental results show that the fabricated arrayed optical amplifiers can be made to correspond properly to wavelength path reconfigurations by adjusting a splitting ratio of the variable splitter between the pump laser and eight EDFAs, and cause no significant penalty for 128-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: Mitsunori
authors.initials: M
authors.lastname: Fukutoku
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Kataoka
authors.forename: Kenya
authors.initials: K
authors.lastname: Suzuki