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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 26 — Sep. 10, 2009
  • pp: 4851–4857

One-dimensional single-mode fiber-optic displacement sensors for submillimeter measurements

Vincent Trudel and Yves St-Amant  »View Author Affiliations


Applied Optics, Vol. 48, Issue 26, pp. 4851-4857 (2009)
http://dx.doi.org/10.1364/AO.48.004851


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Abstract

We demonstrate the working principle of a one-dimensional intensity-based fiber-optic displacement sensor. The sensor consists of one receiving fiber, which is moved laterally in the optical field emitted by an emitting fiber. It is shown numerically that the sensor response is highly linear (nonlinearity error of 0.1 to 2%) for a wide range of travel (2.24 to 860 μm ). The sensor response is also simulated experimentally using a highly precise robot, the results of which correspond very closely to numerical ones. Linearity, travel, and sensitivity are experimentally determined for different gaps between the emitting and the receiving fibers ( 10 μm to 10 mm ). A design chart that includes the nonlinearity error (0.5% to 2%), the travel (2.78 to 860 μm ), the sensitivity (0.032 to 0.37 dB / μm ), and the gap distance (1 to 10 mm ) is finally proposed.

© 2009 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 9, 2009
Revised Manuscript: June 30, 2009
Manuscript Accepted: July 31, 2009
Published: September 1, 2009

Citation
Vincent Trudel and Yves St-Amant, "One-dimensional single-mode fiber-optic displacement sensors for submillimeter measurements," Appl. Opt. 48, 4851-4857 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-26-4851

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