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Related Concept Videos

Group Polarization01:01

Group Polarization

Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...

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Related Experiment Video

Updated: Jun 12, 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

Polarization-maintaining optical microfiber.

Yongmin Jung1, Gilberto Brambilla, David J Richardson

  • 1Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK. ymj@orc.soton.ac.uk

Optics Letters
|June 16, 2010
PubMed
Summary
This summary is machine-generated.

We developed a polarization-maintaining microfiber from fused silica, offering stable light polarization even when bent. This new microfiber maintains polarization effectively, outperforming standard single-mode types.

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Last Updated: Jun 12, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Published on: February 28, 2016

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Area of Science:

  • Photonics
  • Optical Fiber Technology
  • Materials Science

Background:

  • Standard single-mode microfibers struggle with maintaining light polarization under external stress.
  • Developing robust optical components is crucial for advanced sensing and communication systems.

Purpose of the Study:

  • To demonstrate a polarization-maintaining (PM) fused silica microfiber.
  • To evaluate its performance against external perturbations like bending.

Main Methods:

  • Adiabatic tapering of a conventional polarization-maintaining (PM) fiber.
  • Characterization of the microfiber's polarization-preserving capabilities and loss.

Main Results:

  • Successfully created a PM fused silica microfiber.
  • Achieved robust polarization preservation under bending.
  • Obtained a typical polarization-extinction ratio of 16 dB.
  • Measured an excess loss of 0.2 dB.

Conclusions:

  • The demonstrated PM microfiber offers superior polarization stability compared to standard microfibers.
  • This technology is suitable for applications requiring stable light polarization under varying conditions.