title: Quantum dot SOA input power dynamic range improvement for differential-phase encoded signals.
abstract: Experimentally we find a 10 dB input power dynamic range advantage for amplification of phase encoded signals with quantum dot SOA as compared to low-confinement bulk SOA. An analysis of amplitude and phase effects shows that this improvement can be attributed to the lower alpha-factor found in QD SOA.
authors.affiliation: Institute of Photonics and Quantum Electronics, Karlsruhe Institute of Technology (KIT), Engesserstr. 5,76131 Karlsruhe, Germany. thomas.vallaitis@kit.edu
authors.forename: T
authors.initials: T
authors.lastname: Vallaitis
authors.forename: R
authors.initials: R
authors.lastname: Bonk
authors.forename: J
authors.initials: J
authors.lastname: Guetlein
authors.forename: D
authors.initials: D
authors.lastname: Hillerkuss
authors.forename: J
authors.initials: J
authors.lastname: Li
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: 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; D045663:Quantum Dots; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*