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

Active Filters01:25

Active Filters

Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:

You might also read

Related Articles

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

Sort by
Same author

Transarterial chemoembolisation for palliative treatment of renal cell carcinoma in two dogs with pulmonary metastasis.

The Journal of small animal practice·2022
Same author

New methods for determination of the keyhole position in the lateral suboccipital approach to avoid transverse-sigmoid sinus injury: Proposition of the groove line as a new surgical landmark.

Neuro-Chirurgie·2021
Same author

Identification of patterns of factors preceding severe or life-threatening asthma exacerbations in a nationwide study.

Allergy·2017
Same author

High-quality III-nitride films on conductive, transparent (2̅01)-oriented β-Ga2O3 using a GaN buffer layer.

Scientific reports·2016
Same author

Severe or life-threatening asthma exacerbation: patient heterogeneity identified by cluster analysis.

Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology·2016
Same author

Complementary cellophane optic gate and its use for a 3D iPad without glasses.

The Review of scientific instruments·2012
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jun 6, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Optically tunable optical filter.

R T James, C Wah, K Iizuka

    Applied Optics
    |November 12, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study presents an optically tunable optical filter using barium titanate, demonstrating a wide tuning range for advanced optical applications like spectrum analysis and wavelength-division multiplexing systems.

    More Related Videos

    Fabrication and Testing of Microfluidic Optomechanical Oscillators
    09:10

    Fabrication and Testing of Microfluidic Optomechanical Oscillators

    Published on: May 29, 2014

    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

    Related Experiment Videos

    Last Updated: Jun 6, 2026

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
    15:25

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

    Published on: February 4, 2018

    Fabrication and Testing of Microfluidic Optomechanical Oscillators
    09:10

    Fabrication and Testing of Microfluidic Optomechanical Oscillators

    Published on: May 29, 2014

    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

    Area of Science:

    • Photonics and Optical Engineering
    • Materials Science
    • Laser Technology

    Background:

    • Photorefractive materials offer unique light-interaction properties.
    • Tunable optical filters are crucial for various spectroscopic and communication systems.
    • Barium titanate is a well-known photorefractive crystal with potential for optical device applications.

    Purpose of the Study:

    • To experimentally demonstrate an optically tunable optical filter.
    • To utilize barium titanate as the core material for the tunable filter.
    • To showcase the filter's performance in spectrum analysis and wavelength-division multiplexing simulations.

    Main Methods:

    • Fabrication and characterization of a tunable optical filter based on photorefractive barium titanate.
    • Implementation of the filter for spectrum analysis at 632.8 nm with a 1.2 nm resolution.
    • Simulation of a wavelength-division multiplexing system using the filter to separate laser diodes at 1560 nm and 1578 nm.
    • Application of the filter to extract spectral slices from a superluminescent diode at 840 nm.

    Main Results:

    • The tunable optical filter demonstrated a resolution of 1.2 nm in spectrum analysis.
    • The filter successfully separated two laser diodes in a simulated wavelength-division multiplexing system.
    • The filter exhibited a bandwidth of 6.9 nm.
    • The device achieved a broad experimental tuning range from 632.8 nm to 1578 nm.

    Conclusions:

    • A single photorefractive barium titanate device can function as a versatile, optically tunable optical filter.
    • The demonstrated tuning range is significant for applications in optical sensing, spectroscopy, and telecommunications.
    • This work highlights the potential of photorefractive materials for developing next-generation tunable optical components.