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Quantum-dot mode-locked lasers with optical injection

机译：带光注入的量子点锁模激光器

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摘要

Modal optical linewidths of a passively mode-locked and optical injection locked quantum dot laser are studied. For the free-running case the modal linewidth is in the order of tens of MHz and demonstrates a parabolic dependence on the mode optical frequency. The slope of the parabola, as was predicted theoretically, is proportional to the radio-frequency (RF) linewidth, which provides a direct measurement of the timing jitter. With optical injection the slave laser optical spectrum becomes narrowed and tunable via the master wavelength. Frequency resolved Mach-Zehnder gating measurements performed to characterize slave laser pulses showed significantly improved pulse time-bandwidth product with optical injection. Measurements of the modal optical linewidths of the injected laser have shown phase locking of the slave laser modes to the master laser in the vicinity of the injection wavelength. However, far from this wavelength modal linewidth of the slave laser increases to greater than that of the free running case, leading to increase of the RF linewidth and timing jitter with single-tone injection.
机译：研究了无源锁模和光注入锁量子点激光器的模态光学线宽。对于自由运行的情况，模态线宽约为几十兆赫兹，并显示出对模态光频率的抛物线依赖性。如理论上所预测的，抛物线的斜率与射频（RF）线宽成正比，这可以直接测量时序抖动。通过光注入，从激光光谱可以通过主波长变窄和可调。为表征从激光脉冲而进行的频率分辨马赫曾德尔门控测量显示，随着光注入，脉冲时间带宽积显着提高。对注入激光器的模态光学线宽的测量表明，在注入波长附近，从激光器模式与主激光器的相位锁定。但是，从激光器的波长模态线宽远没有增加到大于自由运行情况下的模态线宽，从而导致了单音注入的RF线宽和定时抖动的增加。

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  • 来源
    《Quantum sensing and nanophotonic devices VII》|2010年|P.760803.1-760803.9|共9页
  • 会议地点 San Francisco CA(US)
  • 作者

    Tatiana Habruseva; rnShane ODonoghue; rnNatalia Rebrova; rnStephen P. Hegarty; rnGuillaume Huyet;

  • 作者单位

    Tyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland and Cork Institute of Technology, Cork, Ireland;

    rnTyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland and Cork Institute of Technology, Cork, Ireland;

    rnTyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland and Cork Institute of Technology, Cork, Ireland;

    rnTyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland and Cork Institute of Technology, Cork, Ireland;

    rnTyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland and Cork Institute of Technology, Cork, Ireland;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TP212;
  • 关键词

    quantum-dot lasers; mode-locking; optical injection; modal linewidth;

    机译：量子点激光器；锁模光学注射模态线宽;

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