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Proceedings Paper

Influence of roughness on scattering of transmitted radiation through hollow waveguides
Author(s): M. Ben-David; Reuben Dahan; Jacob Dror; Nathan I. Croitoru
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Paper Abstract

Scattering of visible and mid-IR radiation transmitted through hollow flexible waveguides was measured employing two methods: total integrated scattered (TIS) and back scattered (BS) radiation. The root mean square ((sigma) ) of roughness was evaluated employing these two methods. This has also enabled evaluation not only of the (sigma) but also the location of important centers of scattering of the metal and dielectric deposited layers on the internal wall of waveguide tubes. Measurements of beam profile were performed using perspex cubes, in which the formed crater image has given information of the mode propagation into the waveguides as a function of distance from: (a) the coupling to the laser, (b) radius of bending, (c) ID of hollow tubes, and (d) coupled energy of laser in waveguide. It was shown that for given radii of bending whisper gallery mode of propagation appears.

Paper Details

Date Published: 5 April 1996
PDF: 9 pages
Proc. SPIE 2677, Biomedical Fiber Optics, (5 April 1996); doi: 10.1117/12.237568
Show Author Affiliations
M. Ben-David, Tel Aviv Univ. (Israel)
Reuben Dahan, Tel Aviv Univ. (Israel)
Jacob Dror, Tel Aviv Univ. (Israel)
Nathan I. Croitoru, Tel Aviv Univ. (Israel)


Published in SPIE Proceedings Vol. 2677:
Biomedical Fiber Optics
Abraham Katzir; James A. Harrington, Editor(s)

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