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

Linear Approximation in Frequency Domain01:26

Linear Approximation in Frequency Domain

338
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
338
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

381
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
381
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

3.0K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
3.0K
Linear Approximation in Time Domain01:21

Linear Approximation in Time Domain

330
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
330
Load-frequency control01:28

Load-frequency control

603
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
603

You might also read

Related Articles

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

Sort by
Same author

10<sup>-21</sup>-Level optical frequency dissemination over 2067 km of noise-loaded field-deployed fiber network.

Light, science & applications·2026
Same author

Design of low-noise, fast-response electronics for high-performance helium optically pumped magnetometers.

The Review of scientific instruments·2026
Same author

A multi-loop auto-locking system with fully digital electronics for ultra-stable laser.

The Review of scientific instruments·2025
Same author

A dynamic adaptive readout method for readout electronics of superconducting quantum computing.

The Review of scientific instruments·2025
Same author

Research on high-performance, real-time periodic signal detection method based on field-programmable gate arrays (FPGAs).

The Review of scientific instruments·2025
Same author

A digital servo for ultra-stable laser frequency stabilization.

The Review of scientific instruments·2024

Related Experiment Video

Updated: Jan 11, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.3K

A low-latency digital servo for optical frequency comb stabilization.

Ziqi Wang1,2, Yu Wang1,2, Danyang Zhu3,4,5

  • 1State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, No. 96, Jinzhai Road, Hefei, Anhui, China.

The Review of Scientific Instruments
|November 12, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a low-latency digital servo system for stabilizing optical frequency combs. The new system achieves a 1.1 MHz control bandwidth, significantly enhancing precision spectroscopy and metrology applications.

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
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.6K

Related Experiment Videos

Last Updated: Jan 11, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.3K
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
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.6K

Area of Science:

  • Physics
  • Optical Engineering

Background:

  • Optical frequency combs are essential for precision spectroscopy and metrology, requiring high stability and accuracy.
  • Digital servo systems offer cost-effectiveness and flexibility for optical frequency comb stabilization but are limited by control bandwidth.

Purpose of the Study:

  • To develop and validate a low-latency digital servo system for optical frequency comb stabilization.
  • To overcome the bandwidth limitations of conventional digital servo systems.

Main Methods:

  • Implementation of a digital servo system on a custom field-programmable gate array (FPGA) digital board.
  • Optimization of filtering and phase detection algorithms to reduce computational latency.
  • Locking the optical frequency comb's repetition rate to a 1560 nm ultra-stable laser.

Main Results:

  • Achieved a control bandwidth of 1.1 MHz.
  • Reduced computational latency while maintaining precision.
  • Demonstrated a modified Allan deviation of 7.27 × 10-18 at 1 s, normalized to optical frequency.

Conclusions:

  • The proposed low-latency digital servo system effectively enhances optical frequency comb stabilization.
  • The system's performance validates its suitability for advanced precision spectroscopy and metrology.
  • FPGA-based digital servo systems offer a promising solution for high-bandwidth optical frequency comb control.