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Related Experiment Videos

One-beam interferometer by beam folding.

José A Ferrari1, Erna M Frins

  • 1Facultad de Ingeniería, Instituto de Física, Montevideo, Uruguay. jferrari@fing.edu.uy

Applied Optics
|September 5, 2002
PubMed
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A novel one-beam interferometer uses beam folding for compact design. This optical device enables precise phase-stepping interferometry through electrical control.

Area of Science:

  • Optics and Photonics
  • Interferometry
  • Optical Instrumentation

Background:

  • Traditional interferometers like the Mach-Zehnder require significant space.
  • Integrating optical paths within a single beam presents a design challenge.
  • Developing compact and versatile interferometric systems is crucial for advanced measurements.

Purpose of the Study:

  • To introduce a novel one-beam interferometer design.
  • To demonstrate a compact alternative to conventional interferometers.
  • To enable phase-stepping interferometry with electrical control.

Main Methods:

  • A one-beam interferometer design utilizing beam folding is presented.
  • Optical components are arranged within a single collimated beam.

Related Experiment Videos

  • Interference is achieved using a central mirror and an imaging lens.
  • Phase delay is controlled via a Pockels cell for phase-stepping techniques.

    • Main Results:

    • The described interferometer successfully integrates both optical paths within a single beam.
    • The use of a Pockels cell allows for precise phase-delay control.
    • The system is compatible with phase-stepping interferometry techniques.
    • A compact interferometric setup is demonstrated.

    Conclusions:

    • The novel one-beam interferometer offers a compact and efficient design.
    • This approach simplifies optical setups while maintaining interferometric precision.
    • The integration of a Pockels cell enhances its utility for advanced phase measurements.