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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 22 — Aug. 1, 1996
  • pp: 4355–4360

Effect of beat frequency on the measured phase of laser-diode heterodyne interferometry

Ribun Onodera and Yukihiro Ishii  »View Author Affiliations


Applied Optics, Vol. 35, Issue 22, pp. 4355-4360 (1996)
http://dx.doi.org/10.1364/AO.35.004355


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Abstract

An optical heterodyne interferometer with a frequency-ramped laser diode has been constructed. The effect of the beat frequency on the measured phase has been theoretically investigated in the frequency domain and experimentally verified. Phase errors caused by the difference between the ramp frequency and the beat frequency alter sinusoidally in accordance with the π periodicity of the interferogram. The error can be eliminated by the electronic calibration technique of the beat frequency.

© 1996 Optical Society of America

History
Original Manuscript: November 3, 1995
Revised Manuscript: February 1, 1996
Published: August 1, 1996

Citation
Ribun Onodera and Yukihiro Ishii, "Effect of beat frequency on the measured phase of laser-diode heterodyne interferometry," Appl. Opt. 35, 4355-4360 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-22-4355

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