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首页> 外文期刊>Optical engineering >Experimental demonstration of a flat optical frequency comb generation based on cascaded directly modulated distributed feedback laser and polarization modulator
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Experimental demonstration of a flat optical frequency comb generation based on cascaded directly modulated distributed feedback laser and polarization modulator

机译：基于级联直接调制分布式反馈激光器和偏振调制器的平面光频率梳产生的实验演示

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摘要

A scheme to generate a flat optical frequency comb (OFC) is proposed and experimentally demonstrated based on a directly modulated distributed feedback (DFB) laser cascaded with a polarization modulator (PolM). In the proposed scheme, the DFB laser is optically injection-locked by a tunable laser source and directly modulated by a radio frequency (RF) signal, which is amplified by a microwave power amplifier. The optical signal is then sent to PolM via a polarization controller (PC) and modulated by the amplified and phase-shifted RF signal from the same source. The optical signal is finally received and measured by an optical spectrum analyzer (OSA) after transmitting through another PC and a polarizer. Here, the OFC with their power variation within 3 dB is desired, and four OFCs with 6, 6, 5, and 4 comb lines are generated using the RF signals with different frequencies, which have a flatness of, respectively, 2.4,2.5,0.7, and 0.6 dB. Here, the number of comb lines is decreased, which is due to the RF signal power decrease while its frequency is raised.
机译：提出了一种生成平面光学频率梳（OFC）的方案，并基于与偏振调制器（PolM）级联的直接调制分布式反馈（DFB）激光器进行了实验验证。在提出的方案中，DFB激光器由可调激光源光学注入锁定，并由射频（RF）信号直接调制，然后由微波功率放大器放大。然后，光信号通过偏振控制器（PC）发送到PolM，并由来自同一光源的放大和相移的RF信号进行调制。在通过另一台PC和偏振器传输之后，光信号最终由光谱分析仪（OSA）接收并测量。在此，需要功率变化在3 dB以内的OFC，并使用具有不同频率的RF信号生成四个具有6、6、5和4条梳状线的OFC，其平坦度分别为2.4、2.5， 0.7和0.6 dB。此处，梳齿线的数量减少，这是由于RF信号功率在其频率升高的同时降低了。

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  • 来源
    《Optical engineering》 |2016年第3期|031112.1-031112.5|共5页
  • 作者

    Dalei Chen; Rong Wang; Tao Pu; Peng Xiang; Tao Fang; Jiling Zheng; Long Huang; Peng Wang;

  • 作者单位

    PLA University of Science and Technology, College of Communications Engineering, Nanjing, Jiangsu 210007, China;

    PLA University of Science and Technology, College of Communications Engineering, Nanjing, Jiangsu 210007, China;

    PLA University of Science and Technology, College of Communications Engineering, Nanjing, Jiangsu 210007, China;

    PLA University of Science and Technology, College of Communications Engineering, Nanjing, Jiangsu 210007, China;

    PLA University of Science and Technology, College of Communications Engineering, Nanjing, Jiangsu 210007, China;

    PLA University of Science and Technology, College of Communications Engineering, Nanjing, Jiangsu 210007, China;

    Nanjing University, College of Engineering and Applied Sciences, Nanjing, Jiangsu 210093, China;

    Nanjing University, College of Engineering and Applied Sciences, Nanjing, Jiangsu 210093, 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; optical frequency comb; optical injection-locking; distributed feedback laser;

    机译：微波光子学光频梳光学锁定分布式反馈激光器;

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