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Proceedings Paper

CO2 laser power delivery with an MIR optical fiber bundle
Author(s): Dawei Liang; Joao M. Coelho; M. Teixeira
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Paper Abstract

The solid core polycrystalline middle infrared region (MIR) optical fiber has no bending loss and has been successfully used as a flexible CO2 laser guide for medical operations. By using a suitable cooling we have improved the power handling capacity for (phi) 1 mm MIR- fiber to 50 W. However this is far less than the needs for most nonmedical applications, like the 500 W requirements for cork cutting. For this purpose a method was developed to join together several fibers and transmit more power. With a fiber bundle composed of 4 MIR fibers, about 120 W is transmitted (with about 50% efficiency for cw power). Preliminary tests were made to improve the power handling capacity and efficiency, so that, in future, about 500 W CO2 laser power can be delivered by using a larger fiber bundle.

Paper Details

Date Published: 21 August 1995
PDF: 7 pages
Proc. SPIE 2538, Nonimaging Optics: Maximum Efficiency Light Transfer III, (21 August 1995); doi: 10.1117/12.216982
Show Author Affiliations
Dawei Liang, Instituto Nacional de Engenharia e Technologia Industrial (Portugal)
Joao M. Coelho, Instituto Nacional de Engenharia e Technologia Industrial (Portugal)
M. Teixeira, Instituto Nacional de Engenharia e Technologia Industrial (Portugal)


Published in SPIE Proceedings Vol. 2538:
Nonimaging Optics: Maximum Efficiency Light Transfer III
Roland Winston, Editor(s)

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