Improved plastic hollow fibers for CO2 laser radiation transmission for possible endoscopic uses

Nathan I. Croitoru, Jacob Dror, M. Alaluf, Reuben Dahan, Israel Gannot

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 β and γ AgI. The dielectric layer thickness (t) was measured and was found to be dependent on the iodination time (T) according to the relation t = 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° from O° 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.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages24-33
Number of pages10
ISBN (Print)081940795X
StatePublished - 1992
EventOptical Fibers in Medicine VII - Los Angeles, CA, USA
Duration: 21 Jan 199222 Jan 1992

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1649
ISSN (Print)0277-786X

Conference

ConferenceOptical Fibers in Medicine VII
CityLos Angeles, CA, USA
Period21/01/9222/01/92

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