CO[sub]2[/sub] Laser Processing Of Glass And Single Crystal Fibers

M A Saifi; M J Andrejco

doi:10.1117/12.938897

12 November 1986 CO₂ Laser Processing Of Glass And Single Crystal Fibers

M A Saifi, M J Andrejco

Proceedings Volume 0668, Laser Processing: Fundamentals, Applications, and Systems Engineering; (1986) https://doi.org/10.1117/12.938897
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada

Abstract

This paper reviews CO₂ laser processing of glass and single crystal fibers. For such applications it is necessary to restructure the laser beam and uniformly distribute it around a rod. A reflaxicon system using a concave conical axicon as the first reflector has been described. An interesting feature of this scheme is that the radiation intensity profile is similar to the shape of the neck down region observed in fiber drawing and the single crystal growth process. This provides a more uniform temperature distribution in the laser irradiated region. Analysis of a simple model and experimental results show that the short heat zone length and the corresponding radial temperature gradients limit the preform size and fiber drawing speed. However these very features are beneficial in fabricating fiber based components, drawing of fibers from glasses prone to devitrification, and the growth of single crystal fibers.

Citation Download Citation

M A Saifi and M J Andrejco "CO₂ Laser Processing Of Glass And Single Crystal Fibers", Proc. SPIE 0668, Laser Processing: Fundamentals, Applications, and Systems Engineering, (12 November 1986); https://doi.org/10.1117/12.938897

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