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

Interference: Path Lengths01:10

Interference: Path Lengths

1.6K
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
1.6K
Interference and Diffraction02:18

Interference and Diffraction

49.8K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
49.8K
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

11.3K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
11.3K
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

191
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
191
Distance Corrections01:15

Distance Corrections

131
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
131

You might also read

Related Articles

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

Sort by
Same author

Tunable Electromagnetically and Optomechanically Induced Transparency in a Spinning Optomechanical System.

Entropy (Basel, Switzerland)·2026
Same author

Super-large record-breaking mitochondrial genome of <i>Cathaya argyrophylla</i> in Pinaceae.

Frontiers in plant science·2025
Same author

Bgh/GelMA/CMCS hydrogel with bone MSC-EVs for lunate defect repair.

Nanomedicine (London, England)·2025
Same author

Optical pulse processor based on achromatic time lens assisted by compound phase modulation.

Optics express·2025
Same author

[A comparative study of color Doppler ultrasound and CT angiography for preoperative evaluation of perforator vessels in free posterior interosseous artery flap].

Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery·2025
Same author

TransGeneSelector: using a transformer approach to mine key genes from small transcriptomic datasets in plant responses to various environments.

BMC genomics·2025
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Nov 1, 2025

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
12:14

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

22.1K

Iterative normalized cross-correlation method for absolute optical path difference demodulation of dual

Guomeng Zuo, Haoliang Hu, Shiyu Li

    Optics Express
    |June 22, 2021
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces an iterative normalized cross-correlation algorithm for precise absolute optical path difference (OPD) demodulation in dual-interference fiber optic sensing systems. The new method achieves high accuracy, improving sensor multiplexing and reducing costs.

    More Related Videos

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.5K
    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

    Published on: October 11, 2016

    9.8K

    Related Experiment Videos

    Last Updated: Nov 1, 2025

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    22.1K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.5K
    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

    Published on: October 11, 2016

    9.8K

    Area of Science:

    • Optical Engineering
    • Fiber Optic Sensing
    • Signal Processing

    Background:

    • Demodulating absolute optical path difference (OPD) in multi-interference systems is challenging, especially with narrow spectral and small OPD intervals.
    • Existing methods struggle with accuracy and multiplexing capabilities in complex optical fiber sensing applications.

    Purpose of the Study:

    • To develop and validate a novel iterative normalized cross-correlation algorithm for accurate absolute OPD demodulation in dual-interference systems.
    • To enhance the performance and cost-effectiveness of optical fiber sensing systems.

    Main Methods:

    • An iterative normalized cross-correlation algorithm was developed, utilizing a template function and reconstruction matrix method.
    • The algorithm iteratively solves for optimal component solutions and OPDs.
    • Simulations and experimental validations were conducted on a dual-interference optical fiber sensing system.

    Main Results:

    • Demodulation accuracies of up to 5 nm were achieved near OPDs of 560 µm and 660 µm across spectral intervals of 45-80 nm.
    • Simulation showed demodulation precision not exceeding 4 nm within a 55 nm spectral interval for OPDs between 650-670 µm.
    • Experimental temperature accuracy of 0.125 °C (95% confidence) closely matched control accuracy (0.1 °C).

    Conclusions:

    • The proposed iterative normalized cross-correlation algorithm effectively demodulates multiple absolute OPDs with high accuracy.
    • This method enhances the multiplexing capability and reduces the cost of optical fiber sensor systems.
    • The algorithm demonstrates significant potential for advanced optical sensing applications.