2010 Fiscal Year Final Research Report
Discrete Multipath Interference Test Method using Synthesized Chirped Signal from Directly Modulated DFB-LD
| Project/Area Number |
20560395
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Shizuoka University |
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Principal Investigator |
AIDA Kazuo Shizuoka University, 工学部, 教授 (00311704)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 周波数掃引光 / DFB-LD / 分布増幅ファイバ伝送路 / 多重散乱光干渉量 / MPI / 離散MPI / 二重レーリー散乱 / 多重反射 / ラマン増幅 |
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| Research Abstract |
Rayleigh backscattering due to microscopic refractive index variation of fibers and discrete reflections from poor connectors and poorly spliced points within the transmission line tend to degrade the receiver performance of the systems. Hence, MPI is one of the most important factors required for high-performance and reliable system construction and operation.
This report describes how to detect discrete multipath interference selectively from others using a linearly chirped test signal and synthesize the signal from a directly modulated DFB-LD. Experiment confirms that our measurement technique can detect high sensitively discrete multipath interference.
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