Kc. Reichmann et al., An eight-wavelength 160-km transparent metro WDM ring network featuring cascaded erbium-doped waveguide amplifiers, IEEE PHOTON, 13(10), 2001, pp. 1130-1132
We demonstrate an 8 x 2.5 Gb/s wavelength-division-multiplexing metropolita
n ring network in which each network-sourced wavelength constitutes a disti
nct multiuser virtual ring. The ring's four nodes feature erbium-doped wave
guide amplifiers, which promise future integrability.