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    • 2. 发明授权
    • Process for manufacturing a microstructured optical fibre and method and system for on-line control of a microstructured optical fibre
    • 微结构光纤的制造方法以及微结构光纤的在线控制的方法和系统
    • US08089619B2
    • 2012-01-03
    • US12226908
    • 2008-09-19
    • Franco CocchiniAntonio CollaroAntonio AdigratAntonio FaraldiFrancesco Di MatteoPaolo Russo
    • Franco CocchiniAntonio CollaroAntonio AdigratAntonio FaraldiFrancesco Di MatteoPaolo Russo
    • G01N21/00
    • C03B37/0253C03B37/02781C03B37/032C03B2203/14C03B2203/42C03B2205/40C03B2205/44C03B2205/72C03B2205/91
    • A manufacturing process of a microstructured optical fiber including a void-containing region, includes the steps of: drawing a microstructured optical fiber along a longitudinal direction from a heated preform, wherein the optical fiber is continuously advanced along the longitudinal direction; directing a radiation beam at a longitudinal position in the longitudinal direction of the optical fiber so as to produce an interference pattern; detecting the interference pattern and producing at least one electrical detection signal corresponding to the interference pattern and including a plurality of signal fringe cycles; feeding the first detection signal into a first counter circuit; determining a first number of interference fringe increments in the plurality of signal wave fringe cycles of the at least one detection signal by using the first counter circuit; determining the outer diameter of the optical fiber, and controlling the microstructure of the optical fiber during advancement of the optical fiber. The step of controlling includes at least one step selected from: (a) controlling the first number of interference fringe increments within a reference number range of reference numbers of interference fringe increments, and (b) calculating a microstructure length value.
    • 包括含空隙区域的微结构光纤的制造方法包括以下步骤:从加热的预成型件沿长度方向拉伸微结构化的光纤,其中,所述光纤沿长度方向连续前进; 引导辐射束在光纤的纵向方向上的纵向位置,以产生干涉图案; 检测所述干扰图案并产生对应于所述干涉图案的至少一个电检测信号,并且包括多个信号条纹周期; 将第一检测信号馈送到第一计数器电路; 通过使用所述第一计数器电路确定所述至少一个检测信号的所述多个信号波缘周期中的第一数目的干涉条纹增量; 确定光纤的外径,并且在光纤的前进过程中控制光纤的微结构。 控制步骤包括从以下各项中选择的至少一个步骤:(a)控制干涉条纹增量的参考数目的参考数字范围内的干涉条纹增量的第一数量,以及(b)计算微结构长度值。