利用液体透镜进行色散补偿（DisCoBALL）。
Dispersion compensation by a liquid lens (DisCoBALL).
作者信息
Durst Michael E, Turcios Anthony, Laurence Colin, Moskovitz Emma
出版信息
Appl Opt. 2019 Jan 10;58(2):428-435. doi: 10.1364/AO.58.000428.
Abstract
We present dispersion compensation by a liquid lens (DisCoBALL), which provides tunable group-delay dispersion (GDD) that is high speed, has a large tuning range, and uses off-the-shelf components. GDD compensation is crucial for experiments with ultrashort pulses. With an electrically tunable lens (ETL) at the Fourier plane of a 4f grating pair pulse shaper, the ETL applies a parabolic phase shift in space and therefore a parabolic phase shift to the laser spectrum, i.e., GDD. The GDD can be tuned with a range greater than 2×10 fs at a rate of 100 Hz while maintaining stable coupling into a single-mode fiber.
摘要
我们展示了一种基于液体透镜的色散补偿方法（DisCoBALL），它能提供高速、具有大调节范围且使用现成组件的可调群延迟色散（GDD）。GDD补偿对于超短脉冲实验至关重要。在4f光栅对脉冲整形器的傅里叶平面上使用电调谐透镜（ETL），ETL在空间中施加抛物线相位偏移，从而对激光光谱施加抛物线相位偏移，即GDD。GDD可以在大于2×10 fs的范围内以100 Hz的速率进行调谐，同时保持稳定地耦合到单模光纤中。
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