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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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Published on: August 12, 2013

Compactness of lateral shearing interferometers.

Yann Ferrec1, Jean Taboury, Hervé Sauer

  • 1Office National d'Etudes et de Recherches Aérospatiales, Palaiseau, France. yann.ferrec@onera.fr

Applied Optics
|August 12, 2011
PubMed
Summary
This summary is machine-generated.

We compared compact interferometers for space imaging. The Michelson interferometer is the most compact solution, especially for highly diverging beams, making it ideal for airborne and spaceborne spectral imaging applications.

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Area of Science:

  • Optics and Photonics
  • Optical Engineering
  • Interferometry

Background:

  • Imaging lateral shearing interferometers are suitable for airborne or spaceborne Fourier-transform spectral imaging.
  • Compactness is a critical parameter for these applications.

Purpose of the Study:

  • To compare the physical size of four mirror-based interferometers.
  • To identify the most compact interferometer design for spectral imaging applications.

Main Methods:

  • Analyzed Michelson interferometers with roof-top mirrors.
  • Evaluated cyclic interferometers with two, three, and four mirrors.
  • Derived expressions for the translation induced between exiting rays.

Main Results:

  • The cyclic interferometer with three mirrors can achieve significant compactness.
  • The Michelson interferometer offers the most compact solution overall.
  • The Michelson interferometer's compactness is particularly advantageous for highly diverging beams.

Conclusions:

  • The Michelson interferometer is the most compact design for airborne and spaceborne spectral imaging.
  • Compact interferometer designs are crucial for advancing Fourier-transform spectral imaging technology.