Infrared power transmission through fluoride glass and sapphire optical fibers

Glenn N. Merberg; Ronald W. Waynant

doi:10.1117/12.146352

28 May 1993 Infrared power transmission through fluoride glass and sapphire optical fibers

Glenn N. Merberg, Ronald W. Waynant

Proceedings Volume 1893, Optical Fibers in Medicine VIII; (1993) https://doi.org/10.1117/12.146352
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

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.

Citation Download Citation

Glenn N. Merberg and Ronald W. Waynant "Infrared power transmission through fluoride glass and sapphire optical fibers", Proc. SPIE 1893, Optical Fibers in Medicine VIII, (28 May 1993); https://doi.org/10.1117/12.146352

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