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Proceedings Paper

Damage thresholds of silica fibers in holmium:YAG laser energy delivery for medical applications
Author(s): Matthew D. Marolda; Donald F. Perrault; Michail M. Pankratov; Stanley M. Shapshay
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Paper Abstract

Pulsed Holmium:YAG (Ho:YAG) laser has been approved for some clinical applications and is under investigation for others. There is little published evidence on the durability or damage parameters for the fibers used in delivering energy from pulsed Ho:YAG laser. This study makes an initial attempt to investigate the damage threshold of different silica fibers under various conditions. Three types of fibers supplied by different manufacturers underwent laboratory testing. The overall finding of the study is that a new `perfect' fiber sustains no damage when fired without a target in air or in saline at energies up to 1.5 J/pulse and repetition rate up to 10 Hz. This study suggests that one may need to chose a fiber according to the clinical procedure to be performed: in cases where only soft tissue is to be manipulated - - any fiber may fare well, in cases where bone or calcified tissue is to be lased -- one may need fiber with aluminized or other hard coating. We also conclude that only professional refinishing with the removal of all exposed core-cladding material can insure trouble free performance.

Paper Details

Date Published: 1 July 1993
PDF: 5 pages
Proc. SPIE 1876, Lasers in Otolaryngology, Dermatology, and Tissue Welding, (1 July 1993); doi: 10.1117/12.147037
Show Author Affiliations
Matthew D. Marolda, Bowdoin College (United States)
Donald F. Perrault, Lahey Clinic Medical Ctr. (United States)
Michail M. Pankratov, Lahey Clinic Medical Ctr. (United States)
Stanley M. Shapshay, Lahey Clinic Medical Ctr. (United States)

Published in SPIE Proceedings Vol. 1876:
Lasers in Otolaryngology, Dermatology, and Tissue Welding
R. Rox Anderson; Lawrence S. Bass; Stanley M. Shapshay; John V. White; Rodney A. White, Editor(s)

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