发明名称 |
METHOD FOR PREPARING AN OPTICAL FIBRE, OPTICAL FIBRE AND USE OF SUCH |
摘要 |
Methods for coating an optical fiber with optical fiber Bragg grating (FBG) with a hermetic coating, particularly a coating of carbon, are employed to avoid ingress of gases, vapors or fluids in the ambient environment. This ingress can be from water or hydrogen, which can diffuse in the fiber glass and cause deviation/drift in the measured Bragg measurements. Bragg gratings that maintain the grating strength at temperatures in excess of 1000° C. are used and can be formed by heating the fiber above 1000° C. in a chamber with a reactive gas that produces deposition of carbon. |
申请公布号 |
EP1409427(A1) |
申请公布日期 |
2004.04.21 |
申请号 |
EP20020733627 |
申请日期 |
2002.06.11 |
申请人 |
OPTOPLAN AS |
发明人 |
KRINGLEBOTN, JON, THOMAS;HORDVIK, AUDUN |
分类号 |
C03C25/10;C03C25/22;C03C25/62;G02B6/02;(IPC1-7):C03C25/22;G02B6/00;G01L1/24 |
主分类号 |
C03C25/10 |
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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