Chalcogenide glass hollow fibers were fabricated. The fibers are small, light, and flexible and can transmit CO2 laser light as well as visible light. Their attenuation remains constant even when bent to small radii of 2 cm. The fibers can transmit high power density (0.5 kW/cm2) in a small spot size (100 μm) of light.
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Bornstein et al. (1985) studied this question.
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