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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 15, Iss. 10 — May. 15, 1990
  • pp: 541–543

Hollow sapphire fibers for the delivery of CO2 laser energy

James A. Harrington and Christopher C. Gregory  »View Author Affiliations


Optics Letters, Vol. 15, Issue 10, pp. 541-543 (1990)
http://dx.doi.org/10.1364/OL.15.000541


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Abstract

Hollow sapphire tubing has been used to deliver nearly single-mode CO2 laser energy. The hollow single-crystal Al2O3 fiber has an n < 1 cladding at 10.6 μm. Measured losses at 10.6 μm are as low as 0.49 dB/m, and the minimum bend radius of the 580 μm × 380 μm fiber is 14 cm. Bending losses are shown to vary as 1/R, and essentially only the HE11 mode propagates in the bent guide.

© 1990 Optical Society of America

History
Original Manuscript: December 1, 1989
Manuscript Accepted: March 7, 1990
Published: May 15, 1990

Citation
James A. Harrington and Christopher C. Gregory, "Hollow sapphire fibers for the delivery of CO2 laser energy," Opt. Lett. 15, 541-543 (1990)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-15-10-541

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