Pulse characterization of passively mode-locked quantum-dot lasers using a delay differential equation model seeded with measured parameters

Ravi Raghunathan, Mark Thomas Crowley, Frédéric Grillot, Yan Li, Jesse K. Mee, Vassilios Kovanis, Luke F. Lester

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

A delay differential equation-based model for passive mode locking in semiconductor lasers is shown to offer a powerful and versatile mathematical framework to simulate quantum-dot lasers, thereby offering an invaluable theoretical tool to study and comprehend the experimentally observed trends specific to such systems. To this end, mathematical relations are derived to transform physically measured quantities from the gain and loss spectra of the quantum-dot material into input parameters to seed the model. In the process, a novel approach toward extracting the carrier relaxation ratio for the device from the measured spectra, which enables a viable alternative to conventional pump-probe techniques, is presented. The simulation results not only support previously observed experimental results, but also offer invaluable insight into the device output dynamics and pulse characteristics that might not be readily understood using standard techniques such as autocorrelation and frequency-resolved optical gating.

Original languageEnglish
Article number6362154
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume19
Issue number4
DOIs
Publication statusPublished - 2013

Keywords

  • Delay differential equations (DDEs)
  • frequency-resolved optical gating (FROG)
  • mode-locked semiconductor lasers
  • pulse asymmetry
  • quantum-dot lasers
  • semiconductor device modeling

ASJC Scopus subject areas

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

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