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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 739–741

Absolute measurement of small-amplitude vibrations by time-averaged heterodyne holography with a dual local oscillator

Nicolas Verrier and Michael Atlan  »View Author Affiliations


Optics Letters, Vol. 38, Issue 5, pp. 739-741 (2013)
http://dx.doi.org/10.1364/OL.38.000739


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Abstract

We report a demonstration of the measurement of the ratio between an optical modulation sideband component and the nonshifted light component by time-averaged heterodyne holography in off-axis and frequency-shifting configuration, through coherent frequency-division multiplexing with a dual optical local oscillator. Experimental results of sinusoidal vibration sensing are reported. This technique enables absolute measurements of subnanometric out-of-plane vibration amplitudes.

© 2013 Optical Society of America

OCIS Codes
(090.4220) Holography : Multiplex holography
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(280.3340) Remote sensing and sensors : Laser Doppler velocimetry
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: January 14, 2013
Manuscript Accepted: January 28, 2013
Published: February 26, 2013

Citation
Nicolas Verrier and Michael Atlan, "Absolute measurement of small-amplitude vibrations by time-averaged heterodyne holography with a dual local oscillator," Opt. Lett. 38, 739-741 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-5-739


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