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 Video

Updated: Jun 22, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Reconfigurable quantum dot monolithic multisection passive mode-locked lasers.

Y C Xin, Y Li, Vassilios Kovanis

    Optics Express
    |June 24, 2009
    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

    Tonsillitis from the Standpoint of the General Practitioner.

    Atlanta journal-record of medicine·2022
    Same author

    Meta-analytic magic, ivermectin, and socially responsible reporting.

    South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·2021
    Same author

    Essential medicine selection during the COVID-19 pandemic: Enabling access in uncharted territory.

    South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·2021
    Same author

    Nocturnal Erythromelalgia.

    The Physician and sportsmedicine·2016
    Same author

    Sex differences in glutamate receptor gene expression in major depression and suicide.

    Molecular psychiatry·2015
    Same author

    Sex differences in glutamate receptor gene expression in major depression and suicide.

    Molecular psychiatry·2015
    Same journal

    Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

    Optics express·2026
    Same journal

    Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

    Optics express·2026
    Same journal

    Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

    Optics express·2026
    Same journal

    Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

    Optics express·2026
    Same journal

    Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

    Optics express·2026
    Same journal

    Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

    Optics express·2026
    See all related articles

    Engineered quantum dot lasers achieve high-speed mode-locking (7.2-51 GHz) by optimizing absorber placement. This results in shorter pulses and higher peak power, advancing photonic integrated circuit technology.

    Area of Science:

    • Photonics
    • Quantum Optics
    • Integrated Circuits

    Background:

    • Quantum dot (QD) lasers are crucial for integrated photonics.
    • Passively mode-locked lasers are key for generating ultrashort optical pulses.
    • Optimizing laser cavity design is essential for enhanced performance.

    Purpose of the Study:

    • To investigate the dynamical response of a multi-section quantum dot passively mode-locked laser.
    • To explore the impact of absorber section positioning on mode-locking characteristics.
    • To enhance pulse width and peak power through engineered multi-section configurations.

    Main Methods:

    • Fabrication of a quantum dot photonic integrated circuit with eleven passive and active gain cells.
    • Biasing cells to operate as a multi-section passively mode-locked laser.

    More Related Videos

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
    14:18

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

    Published on: February 28, 2016

    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    Related Experiment Videos

    Last Updated: Jun 22, 2026

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
    08:48

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

    Published on: November 22, 2019

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
    14:18

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

    Published on: February 28, 2016

    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

  • Systematic variation of absorber section position within the laser cavity.

    • Main Results:

    • Achieved fundamental and harmonic mode-locking at repetition rates from 7.2 GHz to 51 GHz.
    • Reduced pulse width by up to 34% (from 9.7 to 6.4 ps) and increased peak pulsed power by 49% (from 150 to 224 mW) compared to two-section configurations.
    • Demonstrated ultra-broad operation range with pulse widths below 10 ps using 3rd-harmonic mode-locking.
    • Reported a record peak power of 234 mW for QD mode-locked lasers operating over 40 GHz.

    Conclusions:

    • Judicious positioning of the absorber section in multi-section QD lasers significantly enhances mode-locking performance.
    • Engineered multi-section configurations, including passive waveguide sections, offer superior pulse width and peak power compared to conventional designs.
    • The study presents a record peak power for high-repetition-rate QD mode-locked lasers, paving the way for advanced photonic applications.