Collection efficiency of a single optical fiber in turbid media

Paulo R. Bargo, Scott A. Prahl, Steven Jacques

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

If a single optical fiber is used for both delivery and collection of light, two major factors affect the measurement of collected light: (1) the light transport in the medium that describes the amount of light that returns to the fiber and (2) the light coupling to the optical fiber that depends on the angular distribution of photons entering the fiber. We focus on the importance of the latter factor and describe how the efficiency of the coupling depends on the optical properties of the medium. For highly scattering tissues, the efficiency is well predicted by the numerical aperture (NA) of the fiber. For lower scattering, such as in soft tissues, photons arrive at the fiber from deeper depths, and the coupling efficiency could increase twofold to threefold above that predicted by the NA.

Original languageEnglish (US)
Pages (from-to)3187-3197
Number of pages11
JournalApplied Optics
Volume42
Issue number16
StatePublished - Jun 1 2003

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Optical fibers
optical fibers
fibers
Fibers
numerical aperture
Photons
Scattering
Tissue
Angular distribution
photons
scattering
delivery
angular distribution
Optical properties
optical properties

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Bargo, P. R., Prahl, S. A., & Jacques, S. (2003). Collection efficiency of a single optical fiber in turbid media. Applied Optics, 42(16), 3187-3197.

Collection efficiency of a single optical fiber in turbid media. / Bargo, Paulo R.; Prahl, Scott A.; Jacques, Steven.

In: Applied Optics, Vol. 42, No. 16, 01.06.2003, p. 3187-3197.

Research output: Contribution to journalArticle

Bargo, PR, Prahl, SA & Jacques, S 2003, 'Collection efficiency of a single optical fiber in turbid media', Applied Optics, vol. 42, no. 16, pp. 3187-3197.
Bargo PR, Prahl SA, Jacques S. Collection efficiency of a single optical fiber in turbid media. Applied Optics. 2003 Jun 1;42(16):3187-3197.
Bargo, Paulo R. ; Prahl, Scott A. ; Jacques, Steven. / Collection efficiency of a single optical fiber in turbid media. In: Applied Optics. 2003 ; Vol. 42, No. 16. pp. 3187-3197.
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