title: Linear semiconductor optical amplifiers for amplification of advanced modulation formats.
abstract: The capability of semiconductor optical amplifiers (SOA) to amplify advanced optical modulation format signals is investigated. The input power dynamic range is studied and especially the impact of the SOA alpha factor is addressed. Our results show that the advantage of a lower alpha-factor SOA decreases for higher-order modulation formats. Experiments at 20 GBd BPSK, QPSK and 16QAM with two SOAs with different alpha factors are performed. Simulations for various modulation formats support the experimental findings.
authors.affiliation: Institute of Photonics and Quantum Electronics (IPQ), Karlsruhe Institute of Technology (KIT), Engesserstr. 5, 76131 Karlsruhe, Germany. rene.bonk@kit.edu
authors.forename: R
authors.initials: R
authors.lastname: Bonk
authors.forename: G
authors.initials: G
authors.lastname: Huber
authors.forename: T
authors.initials: T
authors.lastname: Vallaitis
authors.forename: S
authors.initials: S
authors.lastname: Koenig
authors.forename: R
authors.initials: R
authors.lastname: Schmogrow
authors.forename: D
authors.initials: D
authors.lastname: Hillerkuss
authors.forename: R
authors.initials: R
authors.lastname: Brenot
authors.forename: F
authors.initials: F
authors.lastname: Lelarge
authors.forename: G-H
authors.initials: GH
authors.lastname: Duan
authors.forename: S
authors.initials: S
authors.lastname: Sygletos
authors.forename: C
authors.initials: C
authors.lastname: Koos
authors.forename: W
authors.initials: W
authors.lastname: Freude
authors.forename: J
authors.initials: J
authors.lastname: Leuthold
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D013685:Telecommunications / Q000295:instrumentation*