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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 16 — Jun. 1, 1999
  • pp: 3460–3467

Pulsed digital holography for high-speed contouring that uses a two-wavelength method

Giancarlo Pedrini, Philipp Fröning, Hans J. Tiziani, and Mikhail E. Gusev  »View Author Affiliations


Applied Optics, Vol. 38, Issue 16, pp. 3460-3467 (1999)
http://dx.doi.org/10.1364/AO.38.003460


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Abstract

A two-wavelength method for a fast shape measurement by use of a pulsed ruby laser is presented. The wavelength change is produced by alteration of the distance between the plates of the laser’s output etalon. One plate of the etalon is mounted on a vibrating piezoelectric element; this allows a fast wavelength change. Two holograms at different wavelengths are recorded in a few microseconds by use of a CCD. The holograms are reconstructed digitally, and the wave-front phase is calculated. The shape is obtained by subtraction of the phases of the wave fronts recorded at different wavelengths. Environmental disturbances at low frequencies, such as air turbulence, vibrations, and object drift, have no influence on the measurement. Experimental results are presented.

© 1999 Optical Society of America

OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(070.2590) Fourier optics and signal processing : ABCD transforms
(090.1760) Holography : Computer holography
(100.2000) Image processing : Digital image processing
(100.2650) Image processing : Fringe analysis
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(140.3540) Lasers and laser optics : Lasers, Q-switched

History
Original Manuscript: August 11, 1998
Revised Manuscript: January 19, 1999
Published: June 1, 1999

Citation
Giancarlo Pedrini, Philipp Fröning, Hans J. Tiziani, and Mikhail E. Gusev, "Pulsed digital holography for high-speed contouring that uses a two-wavelength method," Appl. Opt. 38, 3460-3467 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-16-3460


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References

  1. C. M. Vest, Holographic Interferometry (Wiley, New York, 1979), Chap. 7, pp. 387–456.
  2. R. Jones, C. Wikes, Holographic and Speckle Interferometry, 2nd ed., Vol. 6 of Cambridge Studies in Modern Optics (Cambridge U. Press, Cambridge, 1989).
  3. A. A. Friesem, U. Levy, “Fringe formation in two-wavelength contour holography,” Appl. Opt. 15, 3009–3020 (1976). [CrossRef] [PubMed]
  4. L. O. Heflinger, R. F. Wuerker, “Holographic contouring via multifrequency lasers,” Appl. Phys. Lett. 15, 28–30 (1969). [CrossRef]
  5. Y.-L. Zou, X. Peng, H. J. Tiziani, “Two-wavelength DSPI surface contouring through the temperature modulation of a laser diode,” Optik (Stuttgart) 94, 155–158 (1993).
  6. Y.-L. Zou, G. Pedrini, H. J. Tiziani, “Surface contouring in a video frame by changing the wavelength of a laser diode,” Opt. Eng. 35, 1074–1079 (1996). [CrossRef]
  7. G. Pedrini, H. Tiziani, Y. Zou, “Digital double pulse-TV holography,” Opt. Laser Eng. 26, 199–219 (1997). [CrossRef]
  8. G. Pedrini, H. Tiziani, “Quantitative evaluation of two-dimensional dynamic deformations using digital holography,” Opt. Laser Technol. 29, 249–256 (1997). [CrossRef]
  9. G. Pedrini, Ph. Froening, H. Fessler, H. Tiziani, “Transient vibration measurements using multipulse digital holography,” Opt. Laser Technol. 29, 505–511 (1997). [CrossRef]
  10. Y. L. Zou, G. Pedrini, H. J. Tiziani, “Two-wavelength contouring with a pulsed ruby laser by employing TV holography,” J. Mod. Opt. 43, 639–646 (1996).
  11. W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, Berlin, 1996), Chap. 8, pp. 452–499. [CrossRef]

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