发明名称 |
Optical-fiber coupler and manufacturing process therefor |
摘要 |
<p>In an optical-fiber coupler formed by disposing two single-mode optical fibers 1 and 2 in parallel, and fusing and elongating the optical fibers at one position in the longitudinal extent of the optical fibers 1 and 2, variation of insertion loss dependent on the polarization can be eliminated in its manufacturing by imparting a twist to the optical coupling part 3' of the fused-elongated portion 3 so that with respect to the direction of a line on a plane orthogonally intersecting the longitudinal direction of the optical fibers 1 and 2, the line linking the centers of the two optical fibers 1 and 2, the direction of the line on a plane at one end of the optical coupling part 3' of the fused-elongated portion 3 makes an angle of 90 degrees with the direction of the line on a plane at the other end of the optical coupling part 3'. <IMAGE></p> |
申请公布号 |
EP0821252(A2) |
申请公布日期 |
1998.01.28 |
申请号 |
EP19970305173 |
申请日期 |
1997.07.14 |
申请人 |
FUJIKURA LTD. |
发明人 |
SUZUKI, FUMIO;SASAKI, HIDEKI;YAMASAKI, SHIGEFUMI;YAMAUCHI, RYOZO;ABIRU, TOMIO |
分类号 |
G02B6/28;(IPC1-7):G02B6/287 |
主分类号 |
G02B6/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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