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Updated: Jun 11, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Dark pulse quantum dot diode laser.

Mingming Feng1, Kevin L Silverman, Richard P Mirin

  • 1JILA, University of Colorado and National Institute of Standards and Technology, Boulder, CO 80309-0440, USA.

Optics Express
|July 1, 2010
PubMed
Summary
This summary is machine-generated.

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Researchers discovered a new operating regime for quantum dot lasers, producing dark pulses. These intensity dips on a continuous background are a stable solution for mode-locked lasers, matching experimental findings.

Area of Science:

  • Optics and Photonics
  • Semiconductor Lasers
  • Quantum Dot Devices

Background:

  • Passively mode-locked lasers are crucial for generating ultrashort optical pulses.
  • Quantum dot lasers offer unique advantages due to their discrete energy levels.
  • Understanding novel pulse dynamics is essential for advancing laser technology.

Purpose of the Study:

  • To describe a new operating regime for passively mode-locked quantum dot diode lasers.
  • To demonstrate the existence and stability of dark pulse solutions in mode-locked lasers.
  • To validate simulation results with experimental observations.

Main Methods:

  • Theoretical analysis using the master equation for mode-locked lasers.
  • Numerical simulations to study the stability of dark pulse solutions.

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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
10:41

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

Related Experiment Videos

Last Updated: Jun 11, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
10:41

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

  • Experimental characterization of the quantum dot laser output.

    • Main Results:

    • A stable operating regime producing dark pulse trains was identified.
    • Dark pulse trains were shown to be a valid solution to the laser master equation.
    • Simulations confirmed the stability and consistency of dark pulses with experimental data.

    Conclusions:

    • Passively mode-locked quantum dot lasers can generate stable dark pulse trains.
    • Dark pulses represent a novel and viable mode-locking regime.
    • The findings provide a foundation for utilizing dark pulses in quantum dot laser applications.