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Proceedings Paper

Hollow glass waveguides for broadband infrared transmission
Author(s): Todd Abel; Jeff Hirsch; James A. Harrington
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Paper Abstract

Hollow glass waveguides have been fabricated with losses as low as 0.2 dB/m at 10.6 micrometers . These guides were fabricated from polyimide-coated, glass tubing in which we deposited an inside metallic layer followed by a thin dielectric coating to enhance the reflectivity of the metal film. The inner diameters of the tubing ranges from 320 to 700 micrometers and we have made lengths as long as 3 m. The bending radii of the guides is less than 5 cm for bore sizes less than 500 micrometers . We have used these waveguides to deliver over 80 W of CO2 laser and several watts of Er:YAG laser power. Finally, the hollow glass guides are inexpensive, robust, and EtO sterilizable.

Paper Details

Date Published: 28 July 1994
PDF: 7 pages
Proc. SPIE 2131, Biomedical Fiber Optic Instrumentation, (28 July 1994); doi: 10.1117/12.180708
Show Author Affiliations
Todd Abel, Rutgers Univ. (United States)
Jeff Hirsch, Rutgers Univ. (United States)
James A. Harrington, Rutgers Univ. (United States)


Published in SPIE Proceedings Vol. 2131:
Biomedical Fiber Optic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir; Fred P. Milanovich, Editor(s)

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