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Annular Heating of Optical Fiber with a CO_2 Laser using Reflective Axicon Elements

机译:使用反射式Axicon元件用CO_2激光器对光纤进行环形加热

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摘要

A method of providing consistent uniform and controlled zone heat at a fiber's surface is presented using a CO_2 laser with axicon reflective elements. This optical configuration converts a laser beam into a light structure resembling a disc or cone that can band a fiber's perimeter. The characteristic of this structure is its inherent ability to deliver increasing power density through uniform convergence toward the structure's center thus applying the appropriate melting heat to varying sizes of fiber. By offsetting the light structure, precise localized zone heating and annealing of specific areas at a fiber's surface can be achieved as well. This is essentially a passive devise into which active feedback elements can be incorporated to allow precise control of processes such as splicing, tapering, ball and axicon lensing, end capping, and combiner fabrication.
机译:提出了一种使用带有轴锥反射元件的CO_2激光器在纤维表面提供一致的均匀且受控区域热量的方法。这种光学配置将激光束转换为类似于可以环绕光纤周边的圆盘或圆锥形的光结构。这种结构的特点是其固有的能力,即通过向结构中心均匀会聚来传递不断增加的功率密度,从而向各种尺寸的纤维施加适当的熔化热。通过抵消光的结构,还可以实现精确的局部区域加热和纤维表面特定区域的退火。从本质上讲,这是一种被动设计,可以将主动反馈元件并入其中,以精确控制诸如拼接,渐缩,球形和轴锥透镜成型,端盖和组合器制造等过程。

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