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

Aliasing01:18

Aliasing

233
Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
233
Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

345
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
345

You might also read

Related Articles

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

Sort by
Same author

A plastoglobuli-localized enzyme links phenylalanine biosynthesis to translational homeostasis in maize.

Nature communications·2026
Same author

Effect of Mechanical Polishing on Rice Flavor: Comparison and Exploration of Key Aroma Characteristics Components.

Foods (Basel, Switzerland)·2026
Same author

Combined inhibition of BETs and HDACs as a potential epigenetics-based therapy for malignant rhabdoid tumor.

Cell death & disease·2026
Same author

Arginine metabolism and the NF-ĸB pathway jointly regulate the airway inflammation in asthma mediated by ILC2s.

International immunopharmacology·2026
Same author

Debranching and OSA esterification of waxy maize starch: effects on nanoparticle properties and emulsion performance.

Food chemistry: X·2026
Same author

Lactylation-driven PDLIM1/PDAP1 axis remodels the inflammatory landscape of acute lung injury: mechanistic insights and precision intervention.

Frontiers in immunology·2026

Related Experiment Video

Updated: Sep 13, 2025

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.0K

Optimization of high-accuracy FBG wavelength demodulation based on spectral correction and algorithm compensation.

Yunjing Jiao, Qijing Lin, Kun Yao

    Optics Express
    |July 30, 2025
    PubMed
    Summary

    This study introduces a spectral correction algorithm to enhance array waveguide grating demodulation accuracy in fiber Bragg grating systems. The method significantly improves precision, overcoming limitations in nanoscale size control and processing.

    More Related Videos

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
    08:12

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

    Published on: March 13, 2013

    12.9K
    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

    10.3K

    Related Experiment Videos

    Last Updated: Sep 13, 2025

    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    11.0K
    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
    08:12

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

    Published on: March 13, 2013

    12.9K
    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

    10.3K

    Area of Science:

    • Optoelectronics
    • Photonics
    • Signal Processing

    Background:

    • Array waveguide gratings (AWGs) are crucial for fiber Bragg grating (FBG) demodulation systems.
    • Practical AWG implementation faces challenges due to nanoscale size control and processing accuracy.
    • These limitations cause spectral inconsistencies, degrading wavelength demodulation performance.

    Purpose of the Study:

    • To develop and validate a spectral correction and compensation algorithm for improving AWG-based FBG demodulation accuracy.
    • To address spectral inconsistencies arising from fabrication imperfections.

    Main Methods:

    • A novel algorithm combining bandwidth matching and Gaussian fitting was proposed.
    • The algorithm aims to correct and compensate for spectral distortions in AWG devices.
    • Simulations and experimental validation were conducted to assess performance.

    Main Results:

    • Simulations demonstrated a 74.5% relative improvement in demodulation accuracy under varying insertion loss uniformity (0-4 dB).
    • The algorithm effectively suppressed performance degradation caused by spectral inconsistencies.
    • Experimental results showed a significant accuracy enhancement from 25.58 pm to 8.82 pm (65% relative improvement) under 3.88 dB spectral insertion loss uniformity.

    Conclusions:

    • The proposed spectral correction and compensation algorithm effectively enhances the demodulation accuracy of AWG-based FBG systems.
    • This approach offers a viable solution to overcome fabrication limitations in AWG devices.
    • The validated algorithm shows promise for practical applications requiring high-precision wavelength demodulation.