2009 Fiscal Year Final Research Report
Fast assessment method of self/cross-phase modulation on optical phase modulation systems
| Project/Area Number |
19560380
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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 |
Communication/Network engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
NORIMATSU Seiji Kyoto University, 大学院・情報学研究科, 准教授 (20303886)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 情報通信工学 / 光ファイバ通信 / 位相変調 / ファイバ非線形効果 |
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| Research Abstract |
The high-speed communications between fixed stations are generally performed by optical fiber communications. Bitrates of subscriber's lines have been increased by optical fiber communications. As a result, it is expected to improve the bitrates in backbone networks. To improve the bitrates, several lasers with different frequencies are used. In this way, the signal quality degradation is caused due to the concentration of optical power in a strictly narrow core of optical fiber. To assess the amount of degradation, computer simulations are conducted. However, calculations must be performed repeatedly to reproduce the actual phenomenon, and it needs a lot of computing time. By developing a simple, fast calculation method, this work will contribute to the efficient design of optical fiber communication systems.
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