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Related Experiment Video

Updated: May 29, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

Fiber-coupled displacement interferometry without periodic nonlinearity.

Jonathan D Ellis1, Arjan J H Meskers, Jo W Spronck

  • 1PME: Mechatronic System Design, Delft University of Technology, Delft, The Netherlands. j.d.ellis@rochester.edu

Optics Letters
|September 21, 2011
PubMed
Summary
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A new Joo-type interferometer eliminates fiber-induced drift and periodic nonlinearity in displacement measurements. This novel design ensures accurate nanometer-scale characterization for fiber-delivered optical systems.

Area of Science:

  • Optical metrology
  • Precision measurement science

Background:

  • Displacement interferometry is crucial for nanometer-scale measurements.
  • Fiber delivery in interferometers can introduce drift and nonlinearity.
  • Existing methods struggle with fiber-induced measurement errors.

Purpose of the Study:

  • To develop a novel interferometer design for fiber-delivered displacement measurements.
  • To eliminate fiber-induced drift and periodic nonlinearity in interferometric systems.
  • To provide a robust solution for high-accuracy metrology with fiber optics.

Main Methods:

  • Introduction of a novel, general Joo-type interferometer.
  • Incorporation of an inherent optical reference post-fiber delivery.
  • Testing of both free-space and fiber-delivered interferometer configurations.

More Related Videos

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Related Experiment Videos

Last Updated: May 29, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Main Results:

  • The novel Joo-type interferometer effectively eliminates fiber-induced drift.
  • No detectable periodic nonlinearity was observed in the interferometer's performance.
  • Consistent results were achieved in both free-space and fiber-delivered setups.

Conclusions:

  • The developed Joo-type interferometer offers a significant advancement for fiber-based optical metrology.
  • This design overcomes key limitations of fiber delivery in precision displacement measurements.
  • It enables highly accurate and stable measurements in diverse applications requiring fiber optics.