Passive, Broadband, and Low-Frequency Suppression of Laser Amplitude Noise to the Shot-Noise Limit Using a Hollow-Core Fiber
Passive, Broadband, and Low-Frequency Suppression of Laser Amplitude Noise to the Shot-Noise Limit Using a Hollow-Core Fiber
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DOI：
10.1103/physrevapplied.12.044073
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发表时间：
2019-03
影响因子：
4.6
通讯作者：
E. Allen;G. Ferranti;K. Rusimova;Robert J. A. Francis-Jones;Maria Azini;D. Mahler;T. Ralph;P. Mosley;J. Matthews
中科院分区：
文献类型：
--
作者：
E. Allen;G. Ferranti;K. Rusimova;Robert J. A. Francis-Jones;Maria Azini;D. Mahler;T. Ralph;P. Mosley;J. Matthews
我们使用空芯光纤来保持CBD中皮秒激光脉冲的频谱和时间轮廓，以在MHz噪声频率下抑制2.6 dB的幅度噪声，使散粒噪声限制在0.01 dB以内。我们提供了CBD方案的增强版本，该方案串联电路以抑制多个频率和宽频率范围-我们进行了第一次演示，将2 - 6 MHz之间的总过量幅度噪声降低了85%。这些演示使无源、宽带、全制导光纤激光器技术能够在散粒噪声极限下运行。
We use hollow-core fibre to preserve the spectrum and temporal profile of picosecond laser pulses in CBD to suppress 2.6 dB of amplitude noise at MHz noise frequencies, to within 0.01 dB of the shot-noise limit. We provide an enhanced version of the CBD scheme that concatenates circuits to suppress over multiple frequencies and over broad frequency ranges --- we perform a first demonstration that reduces total excess amplitude noise, between 2 - 6 MHz, by 85%. These demonstrations enable passive, broad-band, all-guided fibre laser technology operating at the shot-noise limit.