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实验研究了熔锥条件对双锥光纤滤波器的影响。提出一个高斯模型，预测锥的几何形状。获得了窄带（３ｄＢ带宽４ｎｍ）带通双锥光纤滤波器以及带阻中心波长分别为１５３５ｎｍ（损耗－６．６ｄＢ）和１５５９ｎｍ（损耗－１９．６ｄＢ）的带阻双锥光纤滤波器。
The influence of melt coning condition on biconical fiber filter was experimentally studied. Propose a Gaussian model to predict the geometry of the cone. Obtained narrowband (3dB bandwidth 4nm) bandpass biconic fiber filters and band-stop biconic fiber filters with band-stop center wavelengths of 1535nm (-6.6dB loss) and 1559nm (-19.6dB loss), respectively.