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1. 发明授权

US08443631B2 Method of making a low PMD optical fiber 有权
标题翻译：制造低PMD光纤的方法
公开(公告)号：US08443631B2
公开(公告)日：2013-05-21
申请号：US12308269
申请日：2006-06-22
申请人： Davide Sarchi , Maddalena Ferrario
发明人： Davide Sarchi , Maddalena Ferrario
IPC分类号： C03B37/025
CPC分类号： C03B37/02745 , C03B2203/06 , C03B2203/19 , C03B2203/36 , C03B2205/06 , G02B6/02285
摘要： A method of making an optical fiber includes the steps of: providing an optical fiber preform; heating an end portion of the optical fiber preform so as to obtain a softened preform end portion; drawing the softened preform end portion to form the optical fiber; applying to the optical fiber a substantially sinusoidal spin having a spin amplitude and a spin period, the substantially sinusoidal spin being transmitted to the softened preform end portion, and determining an actual spin amplitude applied to the fiber, wherein the actual spin amplitude is the spin amplitude applied in correspondence to the softened preform end portion. The spin amplitude and spin period of the substantially sinusoidal spin are selected in such a way that a ratio of the actual spin amplitude to the spin period is in the range of approximately 0.8 to approximately 1.4 turns/m2.
摘要翻译：制造光纤的方法包括以下步骤：提供光纤预制棒; 加热光纤预制棒的端部以获得软化的预成型件端部; 绘制软化的预成型件端部以形成光纤; 向光纤施加具有自旋振幅和自旋周期的基本上正弦的自旋，基本上正弦的旋转被传递到软化的预制件端部，并且确定施加到光纤的实际自旋振幅，其中实际的自旋振幅是旋转对应于软化的预制件端部施加的振幅。选择基本正弦自旋的自旋振幅和自旋周期，使得实际自旋振幅与自旋周期的比值在大约0.8至大约1.4转/平方米的范围内。

2. 发明申请

US20100232754A1 Method of making a low PMD optical fiber 有权
标题翻译：制造低PMD光纤的方法
公开(公告)号：US20100232754A1
公开(公告)日：2010-09-16
申请号：US12308269
申请日：2006-06-22
申请人： Davide Sarchi , Maddalena Ferrario
发明人： Davide Sarchi , Maddalena Ferrario
IPC分类号： G02B6/02 , C03B37/02
CPC分类号： C03B37/02745 , C03B2203/06 , C03B2203/19 , C03B2203/36 , C03B2205/06 , G02B6/02285
摘要： A method of making an optical fiber includes the steps of: providing an optical fiber preform; heating an end portion of the optical fiber preform so as to obtain a softened preform end portion; drawing the softened preform end portion to form the optical fiber; applying to the optical fiber a substantially sinusoidal spin having a spin amplitude and a spin period, the substantially sinusoidal spin being transmitted to the softened preform end portion, and determining an actual spin amplitude applied to the fiber, wherein the actual spin amplitude is the spin amplitude applied in correspondence to the softened preform end portion. The spin amplitude and spin period of the substantially sinusoidal spin are selected in such a way that a ratio of the actual spin amplitude to the spin period is in the range of approximately 0.8 to approximately 1.4 turns/m2.
摘要翻译：制造光纤的方法包括以下步骤：提供光纤预制棒; 加热光纤预制棒的端部以获得软化的预成型件端部; 绘制软化的预成型件端部以形成光纤; 向光纤施加具有自旋振幅和自旋周期的基本上正弦的自旋，基本上正弦的旋转被传递到软化的预制件端部，并且确定施加到光纤的实际自旋振幅，其中实际的自旋振幅是旋转对应于软化的预制件端部施加的振幅。选择基本正弦自旋的自旋振幅和自旋周期，使得实际自旋振幅与自旋周期的比值在大约0.8至大约1.4转/平方米的范围内。

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