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Proceedings Paper

Sapphire fibers for 3-um delivery systems
Author(s): Gwynneth M. Plarke; David Chadwick; Rick K. Nubling; James A. Harrington
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Paper Abstract

Er:YAG laser energy is highly absorbed by water, and therefore can provide excellent cutting precision with minimal thermal damage to surrounding tissue. Single crystal sapphire fibers are capable of transmitting Er:YAG laser energy with low loss and, additionally, they are chemically durable and bio-compatible. In this study, 300 micrometers diameter sapphire fibers were evaluated for use in surgical applications. Scattering and absorption losses, effective NA, and power handling capabilities were measured. The fibers had losses less than 1 dB/m, an effective NA of 0.2, and damage thresholds exceeding 1.2 kJ/cm2. The high damage thresholds were achieved only after a laser conditioning process at the proximal end of the fiber.

Paper Details

Date Published: 1 May 1995
PDF: 6 pages
Proc. SPIE 2396, Biomedical Optoelectronic Instrumentation, (1 May 1995); doi: 10.1117/12.208430
Show Author Affiliations
Gwynneth M. Plarke, Rutgers Univ. (United States)
David Chadwick, Rutgers Univ. (United States)
Rick K. Nubling, Rutgers Univ. (United States)
James A. Harrington, Rutgers Univ. (United States)

Published in SPIE Proceedings Vol. 2396:
Biomedical Optoelectronic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir, Editor(s)

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