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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 9 — Mar. 20, 1992
  • pp: 1328–1343

Fiber-optic fan-beam absorption tomography

Edward J. Beiting  »View Author Affiliations


Applied Optics, Vol. 31, Issue 9, pp. 1328-1343 (1992)
http://dx.doi.org/10.1364/AO.31.001328


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Abstract

An absorption tomography instrument that is capable of acquiring 100 projections of 100 elements each in less than 200 ns is described. The instrument uses time-multiplexed, fiber-optic fan-beam sources that are sequentially activated in groups to reduce greatly the total number of detectors required for achieving a given resolution. The quantitative details required to tailor this instrument to a particular application are presented. A single-fiber prototype was used to verify the design and establish its sensitivity. The sensitivity is limited by laser-speckle noise. The fiber-optic fan-beam generator can produce an interdetector correlation of the projection noise, reducing the effect of this noise on the reconstruction. The noise is measured as a function of optic-fiber stability and size, laser bandwidth and mode stability, and detector size.

© 1992 Optical Society of America

History
Original Manuscript: April 9, 1991
Published: March 20, 1992

Citation
Edward J. Beiting, "Fiber-optic fan-beam absorption tomography," Appl. Opt. 31, 1328-1343 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-9-1328

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