title: A self-restorable architecture for bidirectional wavelength-division-multiplexed passive optical network with colorless ONUs.
abstract: We propose and experimentally demonstrate a novel protection scheme for wavelength-division-multiplexed passive optical network (WDM-PON) employing colorless optical transceivers. The proposed network employs 2 x N arrayed waveguide grating (AWG) to utilize its routing characteristics. The colorless operation is achieved by using wavelength-locked Fabry-Perot laser diodes (FP-LDs) injected with spectrum-sliced amplified spontaneous emission (ASE) light. The experimental results show that the restoration can be achieved within 8 ms against the feeder fiber fault and the power penalty introduced by the restoration process is negligible.
authors.affiliation: Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea. klee21@kist.re.kr
authors.forename: Kwanil
authors.initials: K
authors.lastname: Lee
authors.forename: Sang Bae
authors.initials: SB
authors.lastname: Lee
authors.forename: Ju Han
authors.initials: JH
authors.lastname: Lee
authors.forename: Young-Geun
authors.initials: YG
authors.lastname: Han
authors.forename: Sil-Gu
authors.initials: SG
authors.lastname: Mun
authors.forename: Sang-Mook
authors.initials: SM
authors.lastname: Lee
authors.forename: Chang-Hee
authors.initials: CH
authors.lastname: Lee