An experimental, laboratory-scale optical fiber drawing tower based on CO laser heating has been developed and used to fabricate speciality optical fiber. The CO laser was utilized in a symmetric four beam heating system. The localized and responsive heating time of the laser-based furnace was beneficial for manufacturing crystalline core fibers, specifically, silicon core optical fibers. Moreover, the specific absorption properties of the CO laser radiation in silica have been evaluated with the aid of finite element modeling. In comparison to the more traditional ${{\rm{CO}}_2}$ laser, CO lasers were found to improve temperature uniformity and heating times while minimizing surface evaporation.

中文翻译：

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特种光纤制造：基于 CO 激光炉的光纤拉丝塔

基于 CO 激光加热的实验性实验室规模光纤拉丝塔已被开发并用于制造特种光纤。CO 激光器用于对称的四光束加热系统。基于激光的炉子的局部和响应加热时间有利于制造晶体芯光纤，特别是硅芯光纤。此外，已经借助有限元建模评估了二氧化硅中 CO 激光辐射的特定吸收特性。与更传统的${{\rm{CO}}_2}$激光器相比，发现 CO 激光器可以提高温度均匀性和加热时间，同时最大限度地减少表面蒸发。