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

1.5K
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...
1.5K
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

2.1K
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
2.1K

You might also read

Related Articles

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

Sort by
Same author

Nanosecond-latency all-optical fiber sensing with in-sensor computing.

Light, science & applications·2026
Same author

Non-invasive Ultrasound Liver Ablation Using Histotripsy: A Feasibility Study in Ex Vivo Porcine Liver and a Chronic Study in Rodent Models In Vivo.

Ultrasound in medicine & biology·2026
Same author

Liquid Surface Synthesis of Ultrathin Two-Dimensional Metal Halide Perovskite.

ACS materials letters·2026
Same author

Stable P-Type PbS Quantum Dot Ink for all-Blade-Coated Short-Wavelength Infrared Photodiodes.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Artificial gauge field engineered waveguide superlattices for high-performance thermo-optic switches.

Optics letters·2026
Same author

Efficient and high-speed silicon Mach-Zehnder modulator at 2 μm wavelengths.

Optics letters·2025

Related Experiment Video

Updated: Mar 8, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.4K

Second-order few-mode Raman amplifier for mode-division multiplexed optical communication systems.

Jiaxiong Li, Jiangbing Du, Lin Ma

    Optics Express
    |February 4, 2017
    PubMed
    Summary

    This study introduces a novel second-order Raman amplifier for few-mode fibers, achieving low noise and improved gain flatness. This advancement offers enhanced performance for future high-capacity mode-division multiplexing optical communication systems.

    More Related Videos

    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
    09:57

    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

    Published on: July 25, 2022

    4.6K
    Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS
    12:56

    Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS

    Published on: October 17, 2010

    14.1K

    Related Experiment Videos

    Last Updated: Mar 8, 2026

    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    11.4K
    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
    09:57

    Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

    Published on: July 25, 2022

    4.6K
    Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS
    12:56

    Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS

    Published on: October 17, 2010

    14.1K

    Area of Science:

    • Optical Engineering
    • Telecommunications
    • Fiber Optics

    Background:

    • Distributed Raman amplification is crucial for optical communication systems.
    • Few-mode fibers (FMF) enable higher data capacities through mode-division multiplexing (MDM).
    • Conventional first-order Raman pumping schemes have limitations in noise performance and bandwidth.

    Purpose of the Study:

    • To experimentally demonstrate and investigate a second-order few-mode Raman amplifier (FM-DRA) for low-noise distributed fiber amplification.
    • To compare the performance of second-order pumping with conventional first-order pumping.
    • To assess the potential of this technology for future high-capacity MDM systems.

    Main Methods:

    • Utilizing 1455 nm and 1360 nm pumps injected as degenerate LP11 modes into a few-mode fiber in a backward configuration.
    • Measuring on-off gains and differential modal gain (DMG) for LP01 and LP11 modes within the 1542-1558 nm band.
    • Employing an optical time-domain reflectometer (OTDR) to monitor signal evolution and evaluate noise figure (NF) improvements.

    Main Results:

    • Achieved maximum on-off gains of 4 dB for both LP01 and LP11 modes.
    • Demonstrated low differential modal gain (DMG) below 0.4 dB.
    • Observed significant noise figure (NF) improvements (1.2 dB for LP01, 1.1 dB for LP11) compared to first-order pumping, with lowest NFs below -2 dB.
    • Reported a broadened Raman amplification band with improved gain flatness for both modes due to second-order pumping.

    Conclusions:

    • The second-order FM-DRA successfully achieves low-noise distributed fiber amplification.
    • The approach offers superior gain flatness and a broader amplification band compared to first-order pumping.
    • This technology holds significant potential for enabling future high-capacity mode-division multiplexing optical communication systems.