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Power efficient ultraflat optical frequency comb generation by cascading modulators

机译：级联调制器产生的功率高效超平坦光频率梳

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摘要

A power efficient optical frequency comb (OFC) is highly desired for applications with limited power supply, e.g., microwave photonics applications in moving vehicles. An ultraflat OFC generation is demonstrated with 0.19-dB flatness, 15 comb lines, and 18.3-dBm total RF power consumption. The scheme is based on spectral convolution. A five-line comb with 0.06-dB flatness and 4.0-GHz spacing is first generated in an intensity modulator. Then the signal is injected to a phase-modulator driven by ×5 frequency of 20.0 GHz to obtain the ultraflat 15-line comb with 0.19-dB flatness. The comb spacing is adjustable by controlling the input frequency of microwave source within the bandwidth of phase-modulation. Our work demonstrates a power efficient approach to obtain ultraflat comb and may benefit microwave photonics applications requiring low-power consumption.
机译：对于电源有限的应用，例如移动车辆中的微波光子学应用，非常需要功率高效的光频率梳（OFC）。用0.19 dB的平坦度，15条梳状线和18.3 dBm的总RF功耗证明了超平坦OFC的产生。该方案基于频谱卷积。首先在强度调制器中产生具有0.06 dB平坦度和4.0 GHz间隔的五线梳。然后，将信号注入到由20.0 GHz的×5频率驱动的相位调制器中，以获得具有0.19 dB平坦度的超扁平15线梳。通过将微波源的输入频率控制在调相带宽内，可以调整梳齿间距。我们的工作展示了一种获得超扁平梳状结构的节能方法，并且可能有益于要求低功耗的微波光子学应用。

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  • 来源
    《Optical engineering》 |2017年第10期|106115.1-106115.6|共6页
  • 作者

    Xiao Xu; Wu Kan; Liu Siqi; Chen Jianping;

  • 作者单位

    Shanghai Jiao Tong University, State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai, China;

    Shanghai Jiao Tong University, State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai, China;

    Shanghai Jiao Tong University, State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai, China;

    Shanghai Jiao Tong University, State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai, 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 photonics; modulator; optical frequency comb;

    机译：微波光子学调制器光学频率梳;

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