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

Multimachine Stability01:25

Multimachine Stability

698
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
698
Scaling01:26

Scaling

717
In designing and analyzing filters, resonant circuits, or circuit analysis at large, working with standard element values like 1 ohm, 1 henry, or 1 farad can be convenient before scaling these values to more realistic figures. This approach is widely utilized by not employing realistic element values in numerous examples and problems; it simplifies mastering circuit analysis through convenient component values. The complexity of calculations is thereby reduced, with the understanding that...
717
Scale-Up Processes01:14

Scale-Up Processes

105
The scale-up of microbial fermentation processes is essential in industrial biotechnology, allowing the transition from laboratory-scale experiments to commercial-scale production while aiming to maintain product yield and quality. This process requires meticulous adjustment of equipment design, process parameters, and contamination control strategies to accommodate increasing culture volumes.At the laboratory scale, cultures are typically maintained in 1 to 10-liter glass or autoclavable...
105
Fermi Level Dynamics01:12

Fermi Level Dynamics

1.1K
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
1.1K
Stability01:28

Stability

516
The time response of a linear time-invariant (LTI) system can be divided into transient and steady-state responses. The transient response represents the system's initial reaction to a change in input and diminishes to zero over time. In contrast, the steady-state response is the behavior that persists after the transient effects have faded.
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
516
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

5.8K
In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
5.8K

You might also read

Related Articles

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

Sort by
Same author

Transverse mode characterization in optical fibers using singular value decomposition.

Optics express·2026
Same author

3 × 3 multicore, Yb-doped fiber amplifier with 3.2 kW output power.

Optics letters·2026
Same author

Influence of core size on the transverse mode instability threshold of fiber amplifiers.

Optics express·2026
Same author

117-mJ pulse energy, high average power, Q-switched Yb-doped 49-core fiber amplifier.

Optics express·2026
Same author

Polarization-maintaining, rod-type, ytterbium-doped, multi-core fiber for high power operation.

Optics express·2026
Same author

Ignition of a large stationary natural gas engine by high-peak power passively Q-switched Nd:YAG/Cr<sup>4+</sup>:YAG laser spark plugs.

Optics express·2025

Related Experiment Video

Updated: Apr 30, 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

11.0K

Scaling the mode instability threshold with multicore fibers.

Hans-Jürgen Otto, Arno Klenke, Cesar Jauregui

    Optics Letters
    |May 3, 2014
    PubMed
    Summary

    Mode instabilities (MIs) in fiber lasers are overcome by using multicore photonic crystal fibers. This advanced design increases the MI threshold power linearly with the number of cores, enabling higher average power output.

    More Related Videos

    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    8.2K
    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
    12:19

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

    Published on: April 4, 2017

    7.9K

    Related Experiment Videos

    Last Updated: Apr 30, 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

    11.0K
    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    8.2K
    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
    12:19

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

    Published on: April 4, 2017

    7.9K

    Area of Science:

    • Fiber laser technology
    • Nonlinear optics
    • Photonic crystal fibers

    Background:

    • Mode instabilities (MIs) limit average power scaling in high-power fiber laser systems.
    • MI threshold power is a critical parameter for power-limited laser designs.
    • Advanced fiber designs are needed to overcome current power limitations.

    Purpose of the Study:

    • To investigate the effect of multicore photonic crystal fiber design on MI threshold power.
    • To demonstrate a method for increasing the MI threshold power in fiber lasers.
    • To achieve higher average output power from fiber laser systems.

    Main Methods:

    • Utilized an advanced multicore photonic crystal fiber design.
    • Investigated the relationship between the number of cores and MI threshold power.
    • Performed experiments to measure average output power and MI threshold.

    Main Results:

    • Demonstrated a linear increase in MI threshold power with the number of fiber cores.
    • Achieved an average output power of 536 W.
    • The demonstrated power output was 4 times the MI threshold power of a single core.

    Conclusions:

    • Multicore photonic crystal fibers offer a scalable solution for increasing MI threshold power.
    • This approach enables significant advancements in average power scaling for fiber lasers.
    • The findings pave the way for next-generation high-power fiber laser systems.