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最近这家工厂在光纤公司(是康宁公司和英国BICC公司为这家工厂专门建立的)的指导下已投入生产。康宁和 BICC两家公司建造新的光纤工厂在于借助计算机控制生产大批量光纤,其工艺方法是康宁公司发明的外气相沉积法——将亚微细粒材料沉积在预制捧上,直到直径约10μm为止。用计算机监控玻璃材料,可精确地再现光纤特性。通过监视激光照射光纤时所形成的干涉图形来控制拉丝速度,使光纤测量精度达到1μm以下。光纤直径一有变化,计算机就会改变拉丝速度来加以校正。计算机还可以控制光纤质量,其方法是检查几种波长时的衰减、带宽、芯径以及光输出角。
The plant has recently been put into production under the direction of fiber optic companies, which Corning and the British company BICC built specifically for the plant. The Corning and BICC companies build new optical fiber plants that rely on computer-controlled production of high-volume optical fibers by the outer-layer deposition method invented by Corning Incorporated - depositing submicron material onto prefabricated panels up to a diameter of about 10 μm . Computer monitors glass materials to accurately reproduce fiber characteristics. By monitoring the interference pattern formed when the laser is irradiated on the optical fiber, the drawing speed is controlled so that the measurement accuracy of the optical fiber becomes 1 μm or less. As soon as the diameter of the fiber changes, the computer changes the drawing speed to correct it. The computer also controls the quality of the fiber by examining the attenuation, bandwidth, core diameter, and light output angle at several wavelengths.