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

Frequency-dependent Selection01:21

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

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 finite,...
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are slanted or...
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
Properties of Fourier Transform II01:24

Properties of Fourier Transform II

The Fourier Transform (FT) is an essential mathematical tool in signal processing, transforming a time-domain signal into its frequency-domain representation. This transformation elucidates the relationship between time and frequency domains through several properties, each revealing unique aspects of signal behavior.
The Frequency Shifting property of Fourier Transforms highlights that a shift in the frequency domain corresponds to a phase shift in the time domain. Mathematically, if x(t) has...
Modes of Standing Waves - I01:03

Modes of Standing Waves - I

A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This phenomenon...

You might also read

Related Articles

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

Sort by
Same author

Impulse response characterization of a quantum frequency converter.

Optics express·2026
Same author

Atmospheric aerosol chemistry and source apportionment of PM10 using stable carbon isotopes and PMF modelling during fireworks over Hyderabad, southern India.

Heliyon·2024
Same author

Measurement of the transverse spatial quantum state of light at the single-photon level: publisher's note.

Optics letters·2021
Same author

Hong-Ou-Mandel interference between independent III-V on silicon waveguide integrated lasers.

Optics letters·2019
Same author

Shape-preserving and unidirectional frequency conversion by four-wave mixing.

Optics express·2018
Same author

Engineering spectrally unentangled photon pairs from nonlinear microring resonators by pump manipulation.

Optics letters·2018
Same journal

Long-term stabilization of intensity-difference squeezing from four-wave mixing in rubidium vapor.

Optics express·2026
Same journal

Robust 3D topography measurement of large-range high-aspect-ratio structures based on dual-domain statistical filtering in SD-OCT.

Optics express·2026
Same journal

Broadband transmissive terahertz metasurface for simultaneous quad-mode OAM multiplexing.

Optics express·2026
Same journal

Leveraging two-dimensional materials for high-sensitivity optical sensors: quasi-bound states in the continuum within hybrid metasurfaces.

Optics express·2026
Same journal

Resolution investigation for dual-spherical-wave optical scanning holographic microscopy: methods and performance.

Optics express·2026
Same journal

Robustness of parallel subnetwork-filtered diffractive deep neural networks.

Optics express·2026
See all related articles

Related Experiment Video

Updated: May 10, 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

Temporal mode selectivity by frequency conversion in second-order nonlinear optical waveguides.

D V Reddy1, M G Raymer, C J McKinstrie

  • 1Department of Physics, University of Oregon, Eugene, Oregon 97403, USA.

Optics Express
|June 6, 2013
PubMed
Summary
This summary is machine-generated.

This study demonstrates frequency conversion via three-wave mixing for multiplexing optical waveforms, enabling selective channel dropping in transparent networks. The research quantifies waveform discrimination capabilities using coupled-mode equations and singular-value decomposition.

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

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Related Experiment Videos

Last Updated: May 10, 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

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

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Area of Science:

  • Nonlinear Optics
  • Quantum Optics
  • Optical Communications

Background:

  • Transparent optical networks require efficient methods for multiplexing and demultiplexing optical signals.
  • Current techniques face challenges in selectively isolating channels that overlap in time and frequency.
  • Frequency conversion offers a potential pathway for advanced optical signal processing.

Purpose of the Study:

  • To theoretically investigate the feasibility of using sum- or difference-frequency generation for selective multiplexing of orthogonal waveforms.
  • To model and quantify the performance of this process as a coherent waveform discriminator.
  • To identify optimal operating regimes and assess the impact of pump chirp on selectivity.

Main Methods:

  • Modeling the frequency conversion process using coupled-mode equations for wave mixing in a nonlinear optical medium.
  • Employing Green functions and Schmidt (singular-value) decompositions to analyze waveform discrimination.
  • Conducting extensive numerical computations to evaluate selectivity across various parameter regimes.

Main Results:

  • A figure of merit based on Schmidt coefficients was defined to quantify selectivity.
  • The most favorable operating regime (without pump chirp) was identified, with a complete analytical solution derived.
  • Including pump chirp was found not to improve selectivity in the optimal regime, but high-efficiency conversion preserving pulse shapes was achieved in another regime.

Conclusions:

  • Frequency conversion via three-wave mixing is a viable method for selectively multiplexing orthogonal waveforms, enabling applications like drop devices in transparent optical networks.
  • The theoretical framework and numerical analysis provide a quantitative understanding of waveform discrimination capabilities.
  • The findings are applicable to both classical and quantum frequency conversion scenarios, offering flexibility in optical signal processing.