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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 20 — Oct. 15, 2007
  • pp: 2933–2935

Coherent range-gated laser displacement metrology with compact optical head

O. P. Lay, S. Dubovitsky, D. A. Shaddock, and B. Ware  »View Author Affiliations


Optics Letters, Vol. 32, Issue 20, pp. 2933-2935 (2007)
http://dx.doi.org/10.1364/OL.32.002933


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Abstract

We describe a new architecture for laser displacement metrology with a drastic reduction in the size and complexity of the optical head. Connected by a single optical fiber, the compact heads are easy to integrate and readily multiplexed to support applications requiring large numbers of sensors. The approach is made possible by modulating the outgoing laser light with a binary random noise code, allowing the detected signals to be discriminated based on their propagation delay. We demonstrate a displacement resolution of 1.1 nm rms.

© 2007 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.3940) Instrumentation, measurement, and metrology : Metrology

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: June 19, 2007
Revised Manuscript: August 13, 2007
Manuscript Accepted: August 14, 2007
Published: October 4, 2007

Citation
O. P. Lay, S. Dubovitsky, D. A. Shaddock, and B. Ware, "Coherent range-gated laser displacement metrology with compact optical head," Opt. Lett. 32, 2933-2935 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-20-2933

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