1 January 1992 Single-crystal fibers for laser power delivery
Author Affiliations +
Proceedings Volume 1591, Infrared Fiber Optics III; (1992) https://doi.org/10.1117/12.56576
Event: OE Fiber, 1991, Boston, MA, United States
Single-crystal sapphire fibers were grown by the laser heated pedestal growth technique. Loss spectra are presented which show attenuation coefficients of less than 1 dB/m at the Er:YAG laser wavelength. Laser pulses of 600 mJ at this wavelength were delivered through the fibers with no laser induced damage. Flexural strength measurements made on these fibers indicate a 0.75% strain to failure when tested under 4-point loading. X-ray photography results show that the crystal quality of fibers grown by this technique is excellent. Initial experiments with a melt extruded teflon cladding on the sapphire fibers are very promising. The teflon is effective at preventing evanescent coupling to water, as might be expected.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Glenn N. Merberg, Glenn N. Merberg, James A. Harrington, James A. Harrington, } "Single-crystal fibers for laser power delivery", Proc. SPIE 1591, Infrared Fiber Optics III, (1 January 1992); doi: 10.1117/12.56576; https://doi.org/10.1117/12.56576


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