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首页> 外文期刊>Optics Letters >High-detectivity optical heterodyne method for wideband carrier-envelope phase noise analysis of laser oscillators
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High-detectivity optical heterodyne method for wideband carrier-envelope phase noise analysis of laser oscillators

机译：激光振荡器宽带载波包络相位噪声分析的高探测光外差法

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摘要

Broadband characterization of the carrier-envelope phase (CEP) noise spectral density of free-running mode-locked lasers is essential for advanced low-noise optical frequency comb designs. Here we present a direct method that utilizes an optical heterodyne beat between a pair of repetition-ratelocked mode-locked lasers for CEP noise characterization, without requiring an f-2f interferometer or nonlinear optical conversion steps. A proof-of-principle experiment in a femtosecond Yb-fiber laser achieves CEP noise spectral density characterization with 270 dB dynamic range over a Fourier frequency range from 5 mHz to 8 MHz. The measurement noise floor is well below 1 mu rad/root Hz, enabling dependable detection down to a quantum-limited noise floor. The method can resolve various noise mechanisms that cause specific CEP noise spectral shapes. The underlying mechanisms are further analyzed in terms of spurious temporal correlation to distinguish between technical and stochastic noise signatures. Moreover, a Hadamard deviation analysis reveals a varying degree of frequency stability in the measured CEP time series. (C) 2018 Optical Society of America
机译：自由运行模式锁定激光器的载波包络相（CEP）噪声谱密度的宽带表征对于先进的低噪声光学频率梳理设计至关重要。在这里，我们提出了一种直接方法，该方法在一对重复的重复的模式锁定激光器之间利用光学外差搏动，用于CEP噪声表征，而不需要F-2F干涉仪或非线性光学转换步骤。 Femtosecond YB-Fiber激光器的原则上的原则上实验使CeP噪声光谱密度表征具有＆ 270 dB动态范围在傅里叶频率范围内，从5 MHz到8 MHz。测量噪声底板远低于1亩RAD / ROOT HZ，使得可靠地检测到量子有限的噪声地板。该方法可以解决导致特定CEP噪声谱形状的各种噪声机制。在虚假时间相关方面进一步分析潜在机制，以区分技术和随机噪声签名。此外，Hadamard偏差分析显示测量的CEP时间序列中的不同频率稳定性。 （c）2018年光学学会

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  • 来源
    《Optics Letters》 |2018年第13期|共4页
  • 作者

    Tian Haochen; Raabe Nils; Song Youjian; Steinmeyer Guenter; Hu Minglie;

  • 作者单位

    Tianjin Univ Sch Precis Instrument &

    Optoelect Engn Ultrafast Laser Lab Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Max Born Inst Max Born Str 2a D-12489 Berlin Germany;

    Tianjin Univ Sch Precis Instrument &

    Optoelect Engn Ultrafast Laser Lab Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Max Born Inst Max Born Str 2a D-12489 Berlin Germany;

    Tianjin Univ Sch Precis Instrument &

    Optoelect Engn Ultrafast Laser Lab Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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