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Proceedings Paper

Infrared power transmission through fluoride glass and sapphire optical fibers
Author(s): Glenn N. Merberg; Ronald W. Waynant
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Paper Abstract

Sapphire and fluoride glass fiber optics were tested for their ability to deliver pulsed infrared laser energy. Commercial fluorozirconate fibers were found to experience laser-induced aging at fluences far below their measured laser damage thresholds. Irradiation of these fibers with even modest fluences (30 mJ/cm2) of Er:YAG laser radiation at 2.94 micrometers wavelength (200 microsecond(s) pulses at 6 Hz) caused pitting and melting of the end-faces within 30 minutes. A tunable free electron laser was used to show that this deterioration is directly related to the absorption of radiation near 3 micrometers wavelength by adsorbed water on the fiber faces. Sapphire fibers did not show any evidence of laser-induced aging.

Paper Details

Date Published: 28 May 1993
PDF: 7 pages
Proc. SPIE 1893, Optical Fibers in Medicine VIII, (28 May 1993); doi: 10.1117/12.146352
Show Author Affiliations
Glenn N. Merberg, FDA Ctr. for Devices and Radiological Health (United States)
Ronald W. Waynant, FDA Ctr. for Devices and Radiological Health (United States)

Published in SPIE Proceedings Vol. 1893:
Optical Fibers in Medicine VIII
Abraham Katzir, Editor(s)

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