发明名称 |
Method, apparatus, and program for measuring wavelength dispersion of optical waveguide |
摘要 |
<p>The invention is to provide a wavelength dispersion measuring method for an optical fiber capable of measuring a wavelength dispersion in a section extending from an incident end of the optical fiber to an arbitrary point along the way by using a scattering phenomenon in which a scattering coefficient at a local point on the optical fiber is independent of time. Incident light having a known spectral density function S(É) is caused to be incident on the optical waveguide, and a wavelength dispersion of the section extending from the incident end of the optical waveguide to the arbitrary point along the way by a correlational function between a signal being proportional to a scattered light amplitude generated at a first halfway point and a signal being proportional to a scattered light amplitude generated at a second halfway point.</p> |
申请公布号 |
EP2562528(A1) |
申请公布日期 |
2013.02.27 |
申请号 |
EP20120188901 |
申请日期 |
2006.09.13 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
ITO, FUMIHIKO;OKAMOTO, KEIJI |
分类号 |
G01M11/02 |
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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