发明名称 |
Mode field diameter conversion optical fiber |
摘要 |
An object of this invention is to provide a mode field diameter conversion optical fiber which can be processed in a short period of time to have a reduced mode field diameter at a desired portion thereof. The optical fiber according to this invention comprises a core of silica glass having a residual tensile stress, and a cladding surrounding the core and having a lower refractive index than that of the core. The desired portion is heated to relax the residual tensile stress in the core, whereby the optical fiber has a reduced mode field diameter at the desired portion.
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申请公布号 |
US5446820(A) |
申请公布日期 |
1995.08.29 |
申请号 |
US19930098908 |
申请日期 |
1993.07.29 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
ISHIKAWA, SHINJI;KANAMORI, HIROO;NAKAZATO, KOJI;NISHIMURA, MASAYUKI;OHGA, YUICHI |
分类号 |
G02B6/02;G02B6/14;G02B6/255;(IPC1-7):G02B6/10 |
主分类号 |
G02B6/02 |
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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