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Proceedings Paper

Improved plastic hollow fibers for CO2 laser radiation transmission for possible endoscopic uses
Author(s): Nathan I. Croitoru; Jacob Dror; M. Alaluf; Reuben Dahan; Israel Gannot
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Paper Abstract

Experimental parameters, as well as chemical and morphological parameters, were investigated with the purpose of improving the performance of the previous type plastic hollow fibers. The dielectric layer was identified as (beta) and (gamma) AgI. The dielectric layer thickness (t) was measured and was found to be dependent on the iodination time (T) according to the relation t equals T0.37. The thickness of the dielectric layer influenced the transmission through the hollow fiber by shifting absorption maxima and reducing the smoothness of AgI layer. The best focal lens of the coupling lens (ZnSe) was found to be 200 mm, and the colinearity angle between the beam and the fiber could deviate +/- 5 degree(s) from O degree(s) angle. The parameters of the new type of fibers were measured and found considerably improved. Employing cooling and pulse power reduced the heating and increased the lifetime of the fiber.

Paper Details

Date Published: 1 August 1992
PDF: 10 pages
Proc. SPIE 1649, Optical Fibers in Medicine VII, (1 August 1992); doi: 10.1117/12.60219
Show Author Affiliations
Nathan I. Croitoru, Tel Aviv Univ. (Israel)
Jacob Dror, Tel Aviv Univ. (Israel)
M. Alaluf, Tel Aviv Univ. (Israel)
Reuben Dahan, Tel Aviv Univ. (Israel)
Israel Gannot, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 1649:
Optical Fibers in Medicine VII
Abraham Katzir, Editor(s)

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