| WDM系统中ASE噪声的二阶色散效应 |
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| 引用本文： | 黄菁. WDM系统中ASE噪声的二阶色散效应[J]. 光学技术, 2011, 37(5): 618-622 |
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| 作者姓名： | 黄菁 |
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| 作者单位： | 华南理工大学理学院物理系,广州,510640 |
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| 摘 要： | 讨论了采用小信号分析法研究脉冲波在色散、非线性光纤中的传输时,放大的自发辐射(ASE)噪声作为功率调制项加入脉冲波的传输方程后所产生的效应.ASE噪声不仅被互相位调制不稳定增益所放大,还受二阶色散成分的影响.其传输函数为COS(1/2β2dzω2),这一函数不能通过色散补偿来消除,会削弱ASE噪声的影响.鉴于此,ASE...
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| 关 键 词： | 波分复用 放大的自发辐射噪声 小信号分析法 色散效应 |
Quadratic dispersion effect of amplified self-emission(ASE) noise in WDM systems |
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| HUANG Jing. Quadratic dispersion effect of amplified self-emission(ASE) noise in WDM systems[J]. Optical Technique, 2011, 37(5): 618-622 |
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| Authors: | HUANG Jing |
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| Affiliation: | HUANG Jing(Physics Department,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | While ASE noise is added as the amplitude modulation item,the pulse transmissions in dispersion and nonlinear fibers can be analyzed by the small signal analysis method.ASE noise is not only amplified by the cross-phase modulation instability gain,but also affected by the quadratic dispersion component.The transfer function is cos1 2β2dzω2 which can not be compensated by dispersion and makes the ASE noise reduce.Therefore,the ASE noise can be eliminated by the suitable choices of amplifier spacing and signal wavelength,and thus the amplifier spacing can also be enlarged. |
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| Keywords: | wavelength division multiplexing amplified spontaneous emission noise small signal analysis quadratic dispersion |
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