Abstract
Calcium aluminate glass has a refractive index less than 1 at 10.6 μm, and therefore it is a good candidate for a hollow fiber for the transmission of CO2 laser energy. We have drawn hollow calcium aluminate glass fibers with inner diameters ranging from 380 to 500 μm. The loss for our 500-μm inner-diameter hollow glass fibers measured at 10.6 μm is 8.6 dB/m.
© 1994 Optical Society of America
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