Modified technique for calibrating Fabry-Perot interferometers

Details Modified technique for calibrating Fabry-Perot interferometers Modified technique for calibrating Fabry-Perot interferometers

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apopt..31..435h&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 31, Feb. 1, 1992, p. 435-437.

Astronomy and Astrophysics

Astronomy

Calibrating, Fabry-Perot Interferometers, Infrared Interferometers, Infrared Telescopes, Digital Simulation, Helium-Neon Lasers, Infrared Astronomy, Near Infrared Radiation, Systems Stability

Scientific paper

An optical technique is developed for the calibration of the cavity spacing of a Fabry-Perot (FP) interferometer with which the central wavelength can be accurately set. The technique by the authors (1989) based on the use of a visible-light laser is reviewed in terms of the fringe-formation process, and the concept of an effective laser wavelength is introduced. By using an approximation of the distance between the FP mirrors the effective wavelength is defined and incorporated into the absolute wavelength calibration. The refinement to the active laser-based stabilization system makes the near-IR astronomical FP interferometers.

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