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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 34 — Dec. 1, 1996
  • pp: 6767–6774

Geometrical analysis of an optical fiber bundle displacement sensor

Atsushi Shimamoto and Kohichi Tanaka  »View Author Affiliations


Applied Optics, Vol. 35, Issue 34, pp. 6767-6774 (1996)
http://dx.doi.org/10.1364/AO.35.006767


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Abstract

The performance of a multifiber optical lever was geometrically analyzed by extending the Cook and Hamm model [Appl. Opt. 34, 5854–5860 (1995)] for a basic seven-fiber optical lever. The generalized relationships between sensitivity and the displacement detection limit to the fiber core radius, illumination irradiance, and coupling angle were obtained by analyses of three various types of light source, i.e., a parallel beam light source, an infinite plane light source, and a point light source. The analysis of the point light source was confirmed by a measurement that used the light source of a light-emitting diode. The sensitivity of the fiber-optic lever is inversely proportional to the fiber core radius, whereas the receiving light power is proportional to the number of illuminating and receiving fibers. Thus, the bundling of the finer fiber with the larger number of illuminating and receiving fibers is more effective for improving sensitivity and the displacement detection limit.

© 1996 Optical Society of America

History
Original Manuscript: August 14, 1995
Revised Manuscript: April 8, 1996
Published: December 1, 1996

Citation
Atsushi Shimamoto and Kohichi Tanaka, "Geometrical analysis of an optical fiber bundle displacement sensor," Appl. Opt. 35, 6767-6774 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-34-6767

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