| 光发射机中MZ型波导调制器产生CTB的分析 |
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| 引用本文： | 蒋洪涛,查开德.光发射机中MZ型波导调制器产生CTB的分析[J].光通信技术,1997(2). |
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| 作者姓名： | 蒋洪涛 查开德 |
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| 作者单位： | 清华大学!北京，100084 |
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| 摘 要： | AM－CATV外调制光发射机中的MZ型波导调制器，其转移特性呈正弦曲线。当多路信号同时调制时，将产生组合二次失真（CSO）和组合三次差拍（CTB）。本文对CTB进行了理论分析，并对我国450、550MHz二种CATV系统调制时的CTB进行了计算。这对非线性补偿电路的设计具有一定的指导价值。
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| 关 键 词： | 调制器 组合三次差拍（CTB） 仿真 |
Analysis of MZ Waveguide Modulator Induced CTB in AM CATV Optical Fiber Externally Modulated Transmitter |
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| Jiang Hongtao,Zha Kaide.Analysis of MZ Waveguide Modulator Induced CTB in AM CATV Optical Fiber Externally Modulated Transmitter[J].Optical Communication Technology,1997(2). |
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| Authors: | Jiang Hongtao Zha Kaide |
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| Abstract: | In optical fiber AM CATV extermally modulated transmitter, Mach-Zenhder modulator is often employed. Nonlinearity of the modulator's output verse voltage would induce composite second order distortion (CSO) and composite triple beat (CTB) in the case of multi-channel modulation. In this paper, CTB is theoretically analysed and simulated on PAL-D 450MHz and 550MHz CATV systems. The result is helpful to nonlinear compensation design. |
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| Keywords: | Modulator Composite triple beat Simulation |
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