| The effects of PMD and PDL on the performance of OOK and DPSK systems |
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| 作者姓名： | TIAN Xiao-xing LIU Han-kui QIU Jun-cai YUAN Fu-lai |
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| 作者单位： | College of Physics and Electronics Information, China West Normal University, Nanchong 637002, China |
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| 基金项目： | This work has been supported by the project of Education Bureauof Sichuan Province (2006ZD026) |
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| 摘 要： | Using multiple importance sampling （MIS） technique, the optical communication system performance affected by polarization-mode dispersion （PMD） and polarization-dependent loss （PDL） is simulated numerically. The power penalties and system outage probabilities are obtained for optical communication systems with on-off keying （OOK） or differential phase shift keying （DPSK） modulation. The simulation results show that DPSK always performs better than OOK. When the system has moderate PDL （about 1.5 dB）, it is necessary to compensate effectively the fiber PMD in order to enhance the system tolerance to the PMD and PDL. However, the efficiency of PMD compensation will degrade rapidly when the PMD of the whole optical link drops into the low value.
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| 关 键 词： | 开关键控系统 微分相移键控系统 偏振模式散射 偏振损失 光纤通信 |
| 文章编号： | 1673-1905（2008）01-0038-04 |
| 收稿时间： | 2007-09-02 |
The effects of PMD and PDL on the performance of OOK and DPSK systems |
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| TIAN Xiao-xing LIU Han-kui QIU Jun-cai YUAN Fu-lai.The effects of PMD and PDL on the performance of OOK and DPSK systems[J].Opto-electronics Letters,2008,4(1):38-41. |
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| Authors: | Xiao-xing Tian Han-kui Liu Jun-cai Qiu and Fu-lai Yuan |
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| Affiliation: | (1) College of Physics and Electronics Information, China West Normal University, Nanchong, 637002, China |
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| Abstract: | Using multiple importance sampling (MIS) technique, the optical communication system performance affected by polarization-mode dispersion (PMD) and polarization-dependent loss (PDL) is simulated numerically. The power penalties and system outage probabilities are obtained for optical communication systems with on-off keying (OOK) or differential phase shift keying (DPSK) modulation. The simulation results show that DPSK always performs better than OOK. When the system has moderate PDL (about 1.5 dB), it is necessary to compensate effectively the fiber PMD in order to enhance the system tolerance to the PMD and PDL. However, the efficiency of PMD compensation will degrade rapidly when the PMD of the whole optical link drops into the low value. |
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| Keywords: | systems DPSK performance efficiency PMD compensation optical link drops value However compensate fiber in order tolerance simulation results show better modulation differential phase shift |
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