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Proceedings Paper

Distal tips for hollow glass waveguide delivery systems
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Paper Abstract

Hollow glass waveguides are an increasingly popular fiber- based delivery system for IR laser power. They are low loss and can be bent to radii less than 3 cm while maintaining an excellent modal distribution. The additional loss due to bending has been shown to scale linearly with the inverse of bending radius. For small bending radii however, this bending loss has bene shown to increase beyond this trend due to mode mixing. Oscillating modes have been observed by varying the radius of curvature for a waveguide bent into a single compete loop. Curved HGW distal tip prototypes of bore sizes 530 and 320 micrometers , were made and exhibited a 0.56 and a 0.17 dB increase in loss respectively over the straight waveguides.

Paper Details

Date Published: 3 May 2000
PDF: 6 pages
Proc. SPIE 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II, (3 May 2000);
Show Author Affiliations
Daniel J. Gibson, Rutgers Univ. (United States)
James A. Harrington, Rutgers Univ. (United States)

Published in SPIE Proceedings Vol. 3911:
Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II
Tuan Vo-Dinh; Warren S. Grundfest M.D.; David A. Benaron M.D., Editor(s)

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