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Everything about Common-path interferometer

A common-path interferometer is a class of interferometers in which the reference beam and sample beams travel along the same path. Examples include the Sagnac interferometer, Zernike phase-contrast interferometer, and the point diffraction interferometer. A common-path interferometer is generally more robust to environmental vibrations than a "double-path interferometer" such as the Michelson interferometer or the Mach–Zehnder interferometer. Although travelling along the same path, the reference and sample beams may travel along opposite directions, or they may travel along the same direction but with the same or different polarization. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Common-path interferometerA 5-minute orientation
  2. Skim a recent paper: A Wavelength-Stabilized and Quasi-Common-Path Heterodyne Grating Interferometer With Sub-Nanometer PrecisionInfluential work since 2022
  3. Pick up a classic book: Intelligent Technologies and Engineering SystemsThe most-reprinted book on the subject
  4. Read the landmark paper: Common-path interferometer for frequency-domain optical coherence tomographyCited 146 times
  5. Go sideways: InterferometryA closely related topic
  6. Go sideways: Point diffraction interferometerA closely related topic

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🏆 Landmark papers (most cited)

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