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Proceedings Paper

Metal Dielectric Films As Materials For Infrared Hollow Fibers
Author(s): N. Croitoru; J. Dror; E. Goldenberg; D. Mendlovic; S. Ruschin
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Paper Abstract

In recent years, because of important applications in medicine and communications that require fibers of a wavelength longer than 2 μm, most intensive investigation of materials for this purpose has begun. An important group of materials that we have investigated is that of chalcogenide glasses1'2' suitable for drawn fibers that can be used for transmission of the CO2 laser radiation (10.6 um). This material, however, has some disadvantages preventing it from practical application. We have devised a new type of hollow fiber made from plastic tubes and covered on the inside wall with metallic and dielectric films. This double film enables the fiber to have a very low attenuation even when being bent. A theoretical ray model that simulated the laser beam propagation through a hollow fiber covered with these films has been made to devise the waveguide behaviour. This model took into account parameters such as: radius of curvature (R); cross-section radius (r); influence of dielectric film (on top of the inner metal film), and influence of light polarization.

Paper Details

Date Published: 1 January 1987
PDF: 4 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967350
Show Author Affiliations
N. Croitoru, Tel-Aviv University (Israel)
J. Dror, Tel-Aviv University (Israel)
E. Goldenberg, Tel-Aviv University (Israel)
D. Mendlovic, Tel-Aviv University (Israel)
S. Ruschin, Tel-Aviv University (Israel)


Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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