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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 1 — Jan. 1, 2003
  • pp: 60–66

Double sinusoidal phase-modulating distributed-Bragg-reflector laser-diode interferometer for distance measurement

Takamasa Suzuki, Hiromi Suda, and Osami Sasaki  »View Author Affiliations


Applied Optics, Vol. 42, Issue 1, pp. 60-66 (2003)
http://dx.doi.org/10.1364/AO.42.000060


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Abstract

A previously proposed double sinusoidal phase-modulating (DSPM) laser-diode interferometer measures distances larger than a half-wavelength by detecting modulation depth. Although it requires a vibrating mirror to provide the second modulation to the interference signal, such vibrations naturally affect measurement accuracy. We propose a static-type DSPM laser-diode interferometer that uses no mechanical modulation. Our experimental results indicate a measurement error of ±1.6 µm.

© 2003 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(140.2020) Lasers and laser optics : Diode lasers
(150.5670) Machine vision : Range finding

History
Original Manuscript: May 6, 2002
Revised Manuscript: August 26, 2002
Published: January 1, 2003

Citation
Takamasa Suzuki, Hiromi Suda, and Osami Sasaki, "Double sinusoidal phase-modulating distributed-Bragg-reflector laser-diode interferometer for distance measurement," Appl. Opt. 42, 60-66 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-1-60

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