发明名称 |
OPTICAL REFRACTOMETRY MEASURING METHOD AND DEVICE |
摘要 |
<p>An object of the invention is to provide an optical reflectometry and an optical reflectometer, in which accurate measurement can be performed irrespective of a measurement distance. In the optical reflectometry and optical reflectometer according to the invention, in which a distribution of backscattered light intensity from a measurement target in an optical propagation direction is measured using Optical Frequency Domain Reflectometry (OFDR), a coherence monitor unit 12 that monitors a coherence property of a frequency sweep light source 1 is provided, and measurement result of a measuring unit 11 is corrected based on the monitor result of the coherence monitor unit 12.</p> |
申请公布号 |
EP2128588(A4) |
申请公布日期 |
2010.09.15 |
申请号 |
EP20080711774 |
申请日期 |
2008.02.21 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
FAN, XINYU;ITO, FUMIHIKO;KOSHIKIYA, YUSUKE |
分类号 |
G01M11/02;G01M11/00 |
主分类号 |
G01M11/02 |
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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