Modeling and direct electric-field measurements of passively mode-locked quantum-dot lasers

Nicholas G. Usechak, Yongchun Xin, Chang Yi Lin, Luke F. Lester, Daniel J. Kane, Vassilios Kovanis

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


A delay differential equation model of a passively mode-locked two-section quantum-dot laser reveals pulse asymmetry that is experimentally confirmed through direct electric-field measurements using frequency-resolved optical gating. This finding indicates that conventional autocorrelators, which obscure the underlying pulse structure due to the symmetry inherent in autocorrelation, are of limited utility in the characterization of these lasers.

Original languageEnglish
Article number4796326
Pages (from-to)653-660
Number of pages8
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number3
Publication statusPublished - May 2009
Externally publishedYes


  • Delay differential equations (DDEs)
  • Mode-locked semiconductor lasers
  • Quantum-dot lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Modeling and direct electric-field measurements of passively mode-locked quantum-dot lasers'. Together they form a unique fingerprint.

Cite this