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

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

1.9K
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Single-mode generation in the random fiber laser with an embedded microcavity.

Optics letters·2026
Same author

Laser generation in an Er-doped tellurite cylindrical microresonator with effective radius variations.

Optics letters·2026
Same author

Reversal of crystallization in cryoprotected samples by laser editing.

The Journal of chemical physics·2024
Same author

Retention behavior of carbohydrates on metal loaded chelating stationary phase under conditions of hydrophilic interaction liquid chromatography.

Journal of chromatography. A·2023
Same author

Thermalization of Orbital Angular Momentum Beams in Multimode Optical Fibers.

Physical review letters·2022
Same author

Statistical mechanics of beam self-cleaning in GRIN multimode optical fibers.

Optics express·2022

Related Experiment Video

Updated: Apr 20, 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

8.1K

High-efficiency cascaded Raman fiber laser with random distributed feedback.

S A Babin, I D Vatnik, A Yu Laptev

    Optics Express
    |November 18, 2014
    PubMed
    Summary

    This study explores cascaded lasing in a long phosphosilicate fiber laser. Researchers achieved over 5 W of output power for the second Stokes component without using a cavity, improving efficiency.

    More Related Videos

    A Multimodal Wide-Field Fourier-Transform Raman Microscope
    06:48

    A Multimodal Wide-Field Fourier-Transform Raman Microscope

    Published on: December 30, 2025

    809
    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
    07:55

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

    Published on: September 22, 2017

    10.8K

    Related Experiment Videos

    Last Updated: Apr 20, 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

    8.1K
    A Multimodal Wide-Field Fourier-Transform Raman Microscope
    06:48

    A Multimodal Wide-Field Fourier-Transform Raman Microscope

    Published on: December 30, 2025

    809
    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
    07:55

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

    Published on: September 22, 2017

    10.8K

    Area of Science:

    • Fiber optics
    • Nonlinear optics
    • Laser physics

    Background:

    • Cascaded Raman lasers typically utilize high-Q cavities for intermediate Stokes components.
    • Cavity losses can limit the overall efficiency of such laser systems.

    Purpose of the Study:

    • To investigate cascaded lasing in a long phosphosilicate fiber using Raman gain and random distributed feedback.
    • To analyze the performance and efficiency of a cavity-less cascaded Raman laser system.

    Main Methods:

    • Utilizing a 1.65-km phosphosilicate fiber for Raman gain and Rayleigh backscattering.
    • Employing 1115-nm pumping to achieve cascaded lasing.
    • Measuring output power of the second Stokes component (1398 nm).

    Main Results:

    • Achieved an output power exceeding 5 W for the second Stokes component at 11 W pump power.
    • Demonstrated efficient pump to second Stokes wave conversion, independent of the intermediate stage.
    • Observed that the number of output photons can exceed absorbed pump photons due to lower Stokes wave attenuation.

    Conclusions:

    • A cavity-less cascaded Raman laser design can be highly efficient.
    • Eliminating intermediate cavities removes associated losses, improving overall conversion efficiency.
    • Long fiber lengths with inherent distributed feedback offer a viable alternative for high-power fiber lasers.