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首页> 外文期刊>Optical fiber technology >Simulation analysis of an improved optical triangular-shaped pulse train generator based on quadrupling RF modulation incorporating fiber dispersion-induced power fading
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Simulation analysis of an improved optical triangular-shaped pulse train generator based on quadrupling RF modulation incorporating fiber dispersion-induced power fading

机译：基于四倍频射频调制并结合光纤色散引起的功率衰减的改进型光学三角脉冲串发生器的仿真分析

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摘要

We report an improved approach to generate optical triangular-shaped pulse train using quadrupling RF modulation and fiber dispersion-induced power fading. In the proposal, quadrupling RF modulation (via a dual-parallel Mach-Zehnder modulator) is employed to generate four primary optical sidebands (±2nd and ±6th) in spectrum. Then a piece of single mode fiber is connected as the dispersive media. Because of the power degradation induced by fiber dispersion, the undesired 8th order harmonic in optical intensity can be removed. It is found that when the modulation index is adjusted to a proper value (m = 4.438), optical intensity with its expression corresponding to the Fourier expansion of idea triangular-shaped waveform can be found. Since the quadrupling RF modulation technique is employed, repetition rate of the target pulse train is four times of the driving frequency, which makes pulse train generation with higher repetition rate or smaller pulse duration possible.
机译：我们报告了一种改进的方法，该方法使用四倍的RF调制和光纤色散引起的功率衰落来生成光学三角形脉冲序列。在该提案中，采用了四倍的RF调制（通过双并行Mach-Zehnder调制器）来生成频谱中的四个主光学边带（±2nd和±6th）。然后连接一条单模光纤作为色散介质。由于由光纤色散引起的功率降低，可以消除光强度中不希望的八阶谐波。可以发现，当将调制指数调整为适当的值（m ＝ 4.438）时，可以发现光强度及其表达式对应于想法三角形波形的傅立叶展开。由于采用了四倍的RF调制技术，目标脉冲序列的重复率是驱动频率的四倍，因此可以产生具有较高重复率或较小脉冲持续时间的脉冲序列。

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  • 来源
    《Optical fiber technology》 |2013年第6ptaa期|574-578|共5页
  • 作者

    Jing Li; Tigang Ning; Li Pei; Wei Jian; Haidong You; Hongyao Chen; Chao Li; Chan Zhang; Shaoshuo Ma;

  • 作者单位

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

    Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microwave photonic; Triangular-shaped pulse train; Quadrupling RF modulation; Fiber dispersion-induced power fading;

    机译：微波光子;三角形脉冲序列;四倍射频调制;光纤色散引起的功率衰减;

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