Single-crystal fibers for laser power delivery

Glenn N. Merberg, James A. Harrington

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


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.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJames A. Harrington, Abraham Katzir
PublisherPubl by Int Soc for Optical Engineering
Number of pages9
ISBN (Print)0819407224
StatePublished - 1992
EventInfrared Fiber Optics III - Boston, MA, USA
Duration: Sep 5 1991Sep 6 1991

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherInfrared Fiber Optics III
CityBoston, MA, USA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Single-crystal fibers for laser power delivery'. Together they form a unique fingerprint.

Cite this