专利名称：BIREFRINGENT OPTICAL FIBERS AND
METHODS FOR MAKING AND CONNECTINGTHEM
发明人：VARNER, Wayne, F. 3M Center申请号：EP00945183.2申请日：20000706公开号：EP1261553B1公开日：20040407
摘要：A method for making a highly birefringent optical fiber includes providing apreform with a substantially circular cross-section. The preform (110) includes a coreregion (120, 140) having a substantially circular cross-section and a substantially ellipticalcladding region (134) adjacent the core region. The outer surface of the preform (130) ismodified to create a shaped preform (150) with a non-circular cross-section. The shapedpreform (150) is then drawn at a temperature and draw rate sufficient to provide anoptical fiber (160) with the non-circular cross-section of the shaped preform. Alsodisclosed is a highly birefringent optical fiber (160) having a substantially circular coreregion (170), a surrounding substantially elliptical cladding region (164) and a non-circularouter geometry, such as planar surfaces (163, 165). A method of connection such opticalfibers having outer planar surfaces using a specially adapted jig (280) is also disclosed.
申请人：3M INNOVATIVE PROPERTIES CO
地址：US
国籍：US
代理机构：von Kirschbaum, Alexander, Dipl.-Ing.
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