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1.发明公开
公开(公告)号：EP4371949A1
公开(公告)日：2024-05-22
申请号：EP22207945.1
申请日：2022-11-17
IPC分类号： C03B37/012 , C03B37/027
CPC分类号： C03B37/0122 , C03B37/02781 , C03B2203/1420130101 , C03B2203/1620130101 , C03B2203/4220130101 , C03B2205/4020130101
摘要： Disclosed is a method of manufacturing an optical fiber and a fiber manufacturing intermediate product. The fiber manufacturing intermediate product comprising: an outer jacket; and a plurality of capillaries, wherein said capillaries comprise an intermediate-level capillary diameter ratio of capillary inner diameter to outer capillary diameter greater than 0.90 and wherein a nominal wall thickness of each said capillary at said intermediate-level is greater than 1500nm. This intermediate product may be drawn to a fiber where the wall thickness in each capillary in the drawn fiber is less than 200nm.
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公开(公告)号：EP4371951A1
公开(公告)日：2024-05-22
申请号：EP22207947.7
申请日：2022-11-17
IPC分类号： C03B37/027 , C03B37/012
CPC分类号： C03B37/0122 , C03B37/02781 , C03B2203/1420130101 , C03B2203/1620130101 , C03B2203/4220130101 , C03B2205/4020130101
摘要： Disclosed is a method of manufacturing an optical fiber, the optical fiber comprising an outer jacket and a plurality of capillaries defining a hollow core. The method comprises obtaining a fiber manufacturing intermediate product; and drawing a fiber from said fiber manufacturing intermediate product. Said drawing is such that the fiber-level capillary wall thickness of each capillary in the drawn fiber is less than 200nm and a tension applied during said drawing is larger than 20MPa.
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