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

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

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...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

You might also read

Related Articles

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

Sort by
Same author

Miniaturized optical system for a chip-based cold-atom inertial sensor.

Applied optics·2025
Same author

Highly scalable femtosecond coherent beam combining demonstrated with 19 fibers.

Optics letters·2017
Same author

Piston and tilt interferometry for segmented wavefront sensing.

Optics letters·2016
Same author

[Nager syndrome associated with tetralogy of Fallot: A frequent association?].

Archives de pediatrie : organe officiel de la Societe francaise de pediatrie·2015
Same author

Response to commentary on "are some invertebrates exquisitely sensitive to the human pharmaceutical fluoxetine?".

Aquatic toxicology (Amsterdam, Netherlands)·2013
Same author

Joint action of combinations of pollutants on the acetylcholinesterase activity of several marine species.

Ecotoxicology (London, England)·2013

Related Experiment Video

Updated: Jun 27, 2026

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

Coherent fiber combining by digital holography.

C Bellanger1, A Brignon, J Colineau

  • 1Thales Research and Technology, Campus de Polytechnique, 91767 Palaiseau Cedex, France. cindy.bellanger@thalesgroup.com

Optics Letters
|December 17, 2008
PubMed
Summary

We developed a new digital holography technique for combining fiber amplifier beams. This method self-adapts to correct phase errors, enabling simpler and scalable coherent beam combining for lasers.

More Related Videos

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy (DHM)
07:27

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy (DHM)

Published on: November 1, 2017

Related Experiment Videos

Last Updated: Jun 27, 2026

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

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy (DHM)
07:27

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy (DHM)

Published on: November 1, 2017

Area of Science:

  • Optics and Photonics
  • Laser Technology
  • Holography

Background:

  • Coherent beam combining (CBC) is crucial for scaling laser power.
  • Traditional CBC methods often face challenges with complexity and scalability.
  • Phase errors between optical elements degrade CBC efficiency.

Purpose of the Study:

  • To introduce a novel, self-adaptive digital holography technique for coherent beam combining.
  • To demonstrate a simple and scalable method for compensating phase errors in fiber amplifier arrays.
  • To experimentally validate the proposed technique.

Main Methods:

  • Utilizing self-adaptive digital holography to correct phase errors.
  • Employing the diffracted phase-conjugated -1 order of a digital hologram for compensation.
  • Implementing the system with a CCD detector matrix and a spatial light modulator.
  • Experimentally testing with three polarization-maintaining passive fibers at 1.06 micrometers.

Main Results:

  • Successful compensation of phase errors between fiber amplifiers.
  • Demonstration of coherent beam combining using the proposed digital holographic method.
  • Validation of the technique's compatibility with multiple fibers and its simple implementation.

Conclusions:

  • The presented self-adaptive digital holography technique offers an effective solution for coherent beam combining.
  • This method provides a scalable and simple approach for high-power fiber laser systems.
  • The experimental results confirm the viability of digital holography for advanced beam control.