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

Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
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:
Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...

You might also read

Related Articles

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

Sort by
Same author

Quantitative white matter alterations of the anterior visual pathway predict injury following radiotherapy for nasopharyngeal carcinoma: a high-angular-resolution diffusion imaging study.

BMC medical imaging·2026
Same author

Closing the nitrogen loop in groundwater with biohybrid technologies.

Trends in biotechnology·2026
Same author

Machine learning-based prediction model for cognitive frailty in elderly patients with ischaemic stroke: a prospective cohort study.

Frontiers in neurology·2026
Same author

Fully-connected microwave photonic multi-beamformer with fast beam-steering for broadband wireless communication.

Nature communications·2026
Same author

Integrated photonic 3D tensor processing engine.

Light, science & applications·2026
Same author

Medical security for rare disease patients in China: Insights from patients with Dravet syndrome.

Intractable & rare diseases research·2026

Related Experiment Video

Updated: Jun 22, 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

Electrically reconfigurable silicon microring resonator-based filter with waveguide-coupled feedback.

Linjie Zhou, Andrew W Poon

    Optics Express
    |June 24, 2009
    PubMed
    Summary
    This summary is machine-generated.

    We developed an electrically tunable silicon microring resonator filter using waveguide feedback. This technology allows precise control over filter performance, enabling stable optical signal processing.

    More Related Videos

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
    09:46

    Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

    Published on: August 8, 2025

    Related Experiment Videos

    Last Updated: Jun 22, 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

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
    09:46

    Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

    Published on: August 8, 2025

    Area of Science:

    • Photonics and Optical Engineering
    • Integrated Optics
    • Semiconductor Devices

    Background:

    • Microring resonators are fundamental components in integrated photonics for wavelength-selective filtering.
    • Achieving electrical tunability and stable filter performance is crucial for advanced optical communication systems.
    • Waveguide-coupled feedback offers a promising mechanism for dynamic control of resonator characteristics.

    Purpose of the Study:

    • To demonstrate an electrically reconfigurable silicon microring resonator filter.
    • To investigate the impact of waveguide-coupled feedback on filter performance.
    • To achieve stable and tunable optical filtering using carrier injection.

    Main Methods:

    • Fabrication of silicon microring resonators with integrated feedback waveguides.
    • Experimental characterization of filter response under varying feedback conditions.
    • Scattering-matrix-based modeling to analyze feedback coupling effects.

    Main Results:

    • Demonstrated electrical tunability of resonance wavelengths, extinction ratios, and line shapes via carrier injection.
    • Showcased control over filter characteristics by adjusting feedback coupling.
    • Achieved nearly uniform resonance line shapes across multiple free-spectral ranges through phase-matching.

    Conclusions:

    • Electrically reconfigurable silicon microring resonator filters with waveguide feedback are feasible.
    • Carrier injection provides effective control over filter parameters for dynamic optical signal processing.
    • Phase-matching the feedback and microring is key to achieving stable, broadband filter performance.