Quantum dot SOA input power dynamic range improvement for differential-phase encoded signals

T Vallaitis; R Bonk; J Guetlein; D Hillerkuss; J Li; R Brenot; F Lelarge; G H Duan; W Freude; J Leuthold

doi:10.1364/OE.18.006270

Quantum dot SOA input power dynamic range improvement for differential-phase encoded signals

Opt Express. 2010 Mar 15;18(6):6270-6. doi: 10.1364/OE.18.006270.

Authors

T Vallaitis¹, R Bonk, J Guetlein, D Hillerkuss, J Li, R Brenot, F Lelarge, G H Duan, W Freude, J Leuthold

Affiliation

¹ Institute of Photonics and Quantum Electronics, Karlsruhe Institute of Technology (KIT), Engesserstr. 5,76131 Karlsruhe, Germany. thomas.vallaitis@kit.edu

PMID: 20389650
DOI: 10.1364/OE.18.006270

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Amplifiers, Electronic*
Equipment Design
Equipment Failure Analysis
Quantum Dots*
Signal Processing, Computer-Assisted / instrumentation*
Telecommunications / instrumentation*