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Phase coherent supercontinuum generation and atmospheric delivery of frequency references using a femtosecond frequency comb.

机译:使用飞秒频率梳进行相位相干超连续谱的产生和频率参考的大气传递。

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摘要

In this dissertation, a phase coherent supercontinuum spanning from 1160 nm to 1780 nm was generated for potential development of a femtosecond frequency comb. Frequency references both in microwave and optical frequency regimes were remotely delivered over 60 m round-trip propagation distance via the atmosphere. For a microwave frequency reference transmission, the RMS timing jitter integrated over 1--105 Hz was 1.86 ps, and agrees with values indicated by atmospheric models for pulse propagation. The root Allan variance was 3 x 10-12 at 1 s averaging time with tau -1 dependence. With the transmission of optical frequency reference the root Allan variance value 3 x 10-13 at 1 s averaging time was achieved. The uncontrolled environment influences the long-term stability measurements of root Allan variance and the noise spectra indicate involvement of random processes. Better stability and longer transmission distances are possible with active-noise cancellation techniques and large-scale optics.
机译:本文研究了飞秒频率梳可能产生的相干超连续谱,范围从1160 nm到1780 nm。微波和光学频率范围内的频率参考均通过大气层在60 m往返传播距离上进行了远程传递。对于微波频率参考传输,在1--105 Hz上积分的RMS时序抖动为1.86 ps,并且与大气模型指示的脉冲传播值一致。在1 s的平均时间内,根艾伦方差为3 x 10-12,与tau -1相关。通过传输光频率参考,可以在1 s的平均时间获得根Allan方差值3 x 10-13。不受控制的环境会影响根艾伦方差的长期稳定性测量,并且噪声谱表明存在随机过程。主动降噪技术和大规模光学技术可以实现更好的稳定性和更长的传输距离。

著录项

  • 作者

    Gollapalli, Ravi Paul.;

  • 作者单位

    The University of Alabama in Huntsville.;

  • 授予单位 The University of Alabama in Huntsville.;
  • 学科 Engineering Electronics and Electrical.;Physics Optics.
  • 学位 Ph.D.
  • 年度 2011
  • 页码 135 p.
  • 总页数 135
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TS97-4;
  • 关键词

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