| 光纤传输系统中互相位调制和受激拉曼散射串扰噪声的比较研究Ⅰ--单级传输系统 |
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| 引用本文： | 蒋志,范崇澄.光纤传输系统中互相位调制和受激拉曼散射串扰噪声的比较研究Ⅰ--单级传输系统[J].光学学报,2003,23(7):834-839. |
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| 作者姓名： | 蒋志 范崇澄 |
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| 作者单位： | 清华大学电子工程系,北京,100084 |
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| 摘 要： | 在密集波分复用强度调制直接检测光纤系统中 ,导出了包含互相位调制和受激拉曼散射共同作用的强度/相位矩阵表达式。在计算强度噪声谱的基础上 ,研究了互相位调制和受激拉曼散射的相互耦合并用于密集波分复用系统的噪声分析。分析表明 ,受激拉曼散射主要引入低频串扰噪声 ,而互相位调制主要引入高频串扰噪声。相邻较近信道引入的串扰噪声主要来源于互相位调制 ,相邻较远信道引入的串扰噪声主要来源于受激拉曼散射。在单级传输 (无色散补偿 )系统中 ,系统性能一般首先受到互相位调制的限制
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| 关 键 词： | 光纤通信技术 互相位调制 受激拉曼散射 串扰噪声 波分复用系统 |
| 收稿时间： | 2002/4/26 |
Comparative Study of XPM- and SRS-Induced Crosstalk in Optical Fiber Transmission Systems Ⅰ--Single Span Transmission System |
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| Jiang Zhi,Fan Chongcheng.Comparative Study of XPM- and SRS-Induced Crosstalk in Optical Fiber Transmission Systems Ⅰ--Single Span Transmission System[J].Acta Optica Sinica,2003,23(7):834-839. |
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| Authors: | Jiang Zhi Fan Chongcheng |
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| Abstract: | Intensity/phase transfer matrices are derived to characterize both cross phase modulation (XPM) and stimulated Raman Scattering (SRS) in IM DD optical fiber systems. Based on the calculation of intensity noise spectrum, comparative study of XPM and SRS induced crosstalk is performed analytically and numerically. Analysis reveals that SRS and XPM leads mainly to low frequency and high frequency noise, respectively; crosstalk from adjacent channels is mainly attributed to XPM while that from channels afar mainly attributed to SRS; and in single span transmission system, crosstalk noise power from XPM will in general exceeds that from SRS. |
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| Keywords: | optical fiber communication cross phase modulation (XPM) stimulated Raman scattering (SRS) crosstalk wavelength division multiplexing (WDM) |
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