Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Excitability in a quantum dot semiconductor laser with optical injection.

D Goulding1, S P Hegarty, O Rasskazov

  • 1Tyndall National Institute, Lee Maltings, Cork, Ireland.

Physical Review Letters
|May 16, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Desynchronization of temporal solitons in Kerr cavities with pulsed injection.

Optics letters·2024
Same author

A deterministic model for non-monotone relationship between translation of upstream and downstream open reading frames.

Mathematical medicine and biology : a journal of the IMA·2021
Same author

Observational study of pre-operative intravenous iron given to anaemic patients before elective cardiac surgery.

Anaesthesia·2021
Same author

An in vitro investigation of the survival and/or growth of Campylobacter jejuni in broiler digestate from different feed types.

Letters in applied microbiology·2020
Same author

Bifurcation structure of a swept-source laser.

Physical review. E·2020
Same author

Competing barnacle species with a time dependent reproduction rate.

Theoretical population biology·2019
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

We studied quantum dot semiconductor lasers under optical injection, observing unique single- and double-pulse behaviors. These dynamics are linked to specific bifurcations, offering insights into laser stability and nonlinear phenomena.

Area of Science:

  • Optics and Photonics
  • Semiconductor Physics
  • Nonlinear Dynamics

Background:

  • Quantum dot semiconductor lasers are crucial for modern optoelectronics.
  • Understanding their dynamic behavior under external stimuli like optical injection is essential for device performance.
  • Previous studies have explored various nonlinear phenomena in semiconductor lasers.

Purpose of the Study:

  • To experimentally investigate the dynamic behavior of a quantum dot semiconductor laser under optical injection.
  • To identify and characterize novel pulse excitability phenomena.
  • To theoretically explain the observed dynamics using bifurcation theory.

Main Methods:

  • Experimental setup involving a quantum dot semiconductor laser subjected to optical injection.

Related Experiment Videos

  • Observation and analysis of laser output dynamics.
  • Theoretical modeling using concepts of saddle-node and period-doubling bifurcations.

    • Main Results:

    • Observed single- and double-pulse excitability at the boundary of the locking region.
    • Identified these pulses as manifestations of saddle-node bifurcation on a limit cycle.
    • Linked double pulses to period-doubling bifurcations on the same homoclinic curve as single pulses.

    Conclusions:

    • The study reveals complex nonlinear dynamics in quantum dot lasers under optical injection.
    • Saddle-node and period-doubling bifurcations are key mechanisms governing observed pulse excitability.
    • The findings contribute to a deeper understanding of laser dynamics and potential applications.