Hollow sapphire fibers for the delivery of CO2 laser energy
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 A12O3 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
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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