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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 23 — Aug. 10, 2004
  • pp: 4482–4487

Disturbance-free distributed Bragg reflector laser-diode interferometer with a double sinusoidal phase-modulating technique for measurement of absolute distance

Takamasa Suzuki, Takao Ohizumi, Tatsuhiko Sekimoto, and Osami Sasaki  »View Author Affiliations


Applied Optics, Vol. 43, Issue 23, pp. 4482-4487 (2004)
http://dx.doi.org/10.1364/AO.43.004482


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Abstract

A new range-finding technique that uses both double sinusoidal phase modulation and quasi-two-wavelength interferometry is described. Two independent interference signals are generated with respect to two different wavelengths on a time-sharing basis. We clarify that external disturbances of these interference signals are eliminated by both feedback control and differential detection and that the feedback control does not affect the distance measurement. A single distributed Bragg reflector laser diode allows us to simplify the optical setup and to improve the measurement accuracy. After discussing a measurement range, we estimate a measurement error by making several measurements.

© 2004 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(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: March 2, 2004
Revised Manuscript: May 12, 2004
Published: August 10, 2004

Citation
Takamasa Suzuki, Takao Ohizumi, Tatsuhiko Sekimoto, and Osami Sasaki, "Disturbance-free distributed Bragg reflector laser-diode interferometer with a double sinusoidal phase-modulating technique for measurement of absolute distance," Appl. Opt. 43, 4482-4487 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-23-4482

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