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Proceedings Paper

Optical properties of LHPG sapphire fibers
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Paper Abstract

Sapphire optical fibers have been grown using the laser-heated pedestal-growth method with losses as low as 0.3 dB/m at 2.94 micrometers and lengths as long as 5 m. With the incorporation of a computer-controlled feedback system we have been able to grow fibers with less than plus or minus 0.5% diameter variation, or plus or minus 1.5 micrometers for a 300 micrometer fiber. We have been able to decrease the loss in these fibers through a post-growth anneal at 1000 degrees Celsius in air; from 5.4 dB/m to 1.5 dB/m at 543 nm and from 0.4 dB/m to 0.3 dB/m at 2.94 micrometer. These fibers delivered 4.7 W at 10 Hz of Er:YAG laser power.

Paper Details

Date Published: 5 April 1996
PDF: 6 pages
Proc. SPIE 2677, Biomedical Fiber Optics, (5 April 1996); doi: 10.1117/12.237565
Show Author Affiliations
Rick K. Nubling, Rutgers Univ. (United States)
James A. Harrington, Rutgers Univ. (United States)

Published in SPIE Proceedings Vol. 2677:
Biomedical Fiber Optics
Abraham Katzir; James A. Harrington, Editor(s)

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