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 Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

You might also read

Related Articles

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

Sort by
Same author

SARS-CoV-2 infection produces an IL-33-dependent chronic eosinophilic pneumonia and muco-inflammatory airways disease in mice.

JCI insight·2026
Same author

The hypoglycemic metabolites and potential mechanisms of <i>Lilium lancifolium</i> (<i>Juandan</i> lily).

Frontiers in pharmacology·2026
Same author

Advances in nano-TCM for Alzheimer's disease: lipid-based carriers integrated with innovative delivery strategies.

Journal of nanobiotechnology·2026
Same author

CNS1-dependent regulatory T cells shape recovery from acute lung injury.

Journal of immunology (Baltimore, Md. : 1950)·2026
Same author

Single-cell Sequencing Unveils A Profibrotic Macrophage and Infiltrating Monocyte Niche in the Bronchoalveolar Lavage of Patients with Chronic Obstructive Pulmonary Disease.

American journal of respiratory and critical care medicine·2026
Same author

Effects of ultrasound-assisted freezing and high-voltage electric field thawing on quality of precooked duck meat.

Frontiers in nutrition·2026

Related Experiment Video

Updated: May 15, 2026

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

11.8K

Sub-100 Hz linewidth, highly stable single frequency fiber laser based on the randomly distributed feedback

Zaibin Xu, Fengming Chen, Guangzhen Bao

    Optics Express
    |November 11, 2025
    PubMed
    Summary

    We developed a novel fiber laser with an ultra-narrow linewidth under 100 Hz for advanced sensing. This single-longitudinal-mode (SLM) erbium-doped fiber (EDF) laser offers exceptional spectral purity and phase stability.

    More Related Videos

    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

    8.0K
    Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
    07:42

    Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

    Published on: December 15, 2021

    3.5K

    Related Experiment Videos

    Last Updated: May 15, 2026

    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

    11.8K
    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

    8.0K
    Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
    07:42

    Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

    Published on: December 15, 2021

    3.5K

    Area of Science:

    • Photonics and Laser Technology
    • Optical Engineering
    • Fiber Optics

    Background:

    • Narrow-linewidth fiber lasers are essential for high-precision applications like remote sensing and coherent LiDAR.
    • Existing lasers often struggle to balance spectral purity, phase stability, and output power.

    Purpose of the Study:

    • To design and demonstrate a high-performance single-longitudinal-mode (SLM) erbium-doped fiber (EDF) laser with a sub-100 Hz linewidth.
    • To investigate the influence of key parameters on laser linewidth using theoretical modeling and numerical simulations.

    Main Methods:

    • Developed a theoretical model for the quasi-continuous cascaded feedback mechanism in randomly distributed feedback structures (RDFS).
    • Performed numerical simulations to analyze the impact of RDFS length, feedback coefficient, and gain bandwidth on linewidth.
    • Constructed a dual-component EDF laser utilizing a self-injection locking mechanism with a saturable absorber-based interferometric ring and optimized RDFS.

    Main Results:

    • Achieved an ultra-narrow linewidth of approximately 95 Hz.
    • Demonstrated stable single-longitudinal-mode (SLM) operation for over two hours.
    • Obtained an output power exceeding 4 mW with relative intensity noise below -140 dB/Hz above 0.5 MHz.

    Conclusions:

    • The proposed theoretical model accurately elucidates the feedback mechanism in RDFS, guiding laser design.
    • The dual-component laser design effectively combines self-injection locking and RDFS for robust SLM operation and linewidth narrowing.
    • The demonstrated laser meets critical performance metrics for demanding applications in sensing and coherent detection.