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

500 W level MOPA laser with switchable output modes based on active control.

Rongtao Su, Baolai Yang, Xiaoming Xi

    Optics Express
    |October 19, 2017
    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

    300-W high-brightness Yb-doped fiber laser near 980 nm based on a 3 × 1 fiber signal combiner.

    Optics express·2026
    Same author

    A Low-Noise PINP Diode Made of CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>2.5</sub>Cl<sub>0.5</sub> Perovskite Single Crystals for High-Energy Proton Spectroscopy.

    ACS applied materials & interfaces·2026
    Same author

    Artificial intelligence for the prediction of prognosis in colorectal cancer patients using routine blood indices.

    NPJ digital medicine·2026
    Same author

    CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> Perovskite Single-Crystal X-Ray Photon-Counting Detection Based on Multi-Layer Electrodes.

    Sensors (Basel, Switzerland)·2026
    Same author

    Development of a prediction model for acute kidney injury in critically ill patients with advanced colorectal cancer based on white blood cell-related indicators.

    Frontiers in oncology·2026
    Same author

    Digital financial inclusion and innovation efficiency in hydrogen energy enterprises: Evidence from China.

    Journal of environmental management·2026

    This study presents a high-power fiber laser capable of switching between LP01 and LP11 modes. Active control of output modes was achieved using a stochastic parallel gradient descent (SPGD) algorithm in a master oscillator power amplifier (MOPA) setup.

    Area of Science:

    • Optics and Photonics
    • Fiber Laser Technology
    • Laser Engineering

    Background:

    • High-power fiber lasers are crucial for various applications.
    • Controlling the transverse modes of fiber laser output is challenging.
    • Master oscillator power amplifier (MOPA) configurations offer high power but often lack mode control.

    Purpose of the Study:

    • To demonstrate a high-power, transverse-mode-switchable fiber laser.
    • To actively control the output modes of a few-mode fiber amplifier.
    • To achieve stable and fast mode switching at high power levels.

    Main Methods:

    • Utilized a master oscillator power amplifier (MOPA) configuration.
    • Employed a few-mode fiber amplifier.
    • Implemented a stochastic parallel gradient descent (SPGD) algorithm to control output modes.

    Related Experiment Videos

  • Manipulated the input polarization state of the fundamental mode seed laser.

    • Main Results:

    • Achieved active control of output modes (LP01 and LP11) in a few-mode fiber amplifier.
    • Demonstrated fast, stable, and safe mode switching.
    • Successfully operated the system at an output power level of 500 W.

    Conclusions:

    • A high-power transverse-mode-switchable fiber laser in a MOPA configuration was successfully developed.
    • The SPGD algorithm effectively controls fiber laser modes by adjusting input polarization.
    • The demonstrated technology enables versatile high-power fiber laser operation.