发明名称 |
Optical fiber for sensors including holes in cladding |
摘要 |
An optical fiber intended to be used as a sensor is of the kind suitable for communication and has a longitudinal cavity or hole which can be intentionally closed or has a more narrow shape at definite positions in the longitudinal direction of the fiber. The cavity, the diameter of which can be of the magnitude of order of 5 mu m-50 mu m, is filled with a material changing its volume depending on physical quantities in the fiber environment. The hole can be closed or made narrower at different positions in the longitudinal direction of the fiber for instance by locally heating the fiber by a pulsed laser beam.
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申请公布号 |
US5627921(A) |
申请公布日期 |
1997.05.06 |
申请号 |
US19940323039 |
申请日期 |
1994.10.14 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
LIDGARD, ANNE I. B.;STENSLAND, LEIF G.;ANGSTROM BERG, K. A. MIKAEL |
分类号 |
C03B37/012;C03B37/027;C03B37/075;G01D5/353;G01K5/32;G02B6/02;(IPC1-7):G02B6/00 |
主分类号 |
C03B37/012 |
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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