Sukiasyan Minas, Karapetyan Narek, Toneyan Hrach, Kutuzyan Aghavni, Mouradian Levon
Appl Opt. 2019 Apr 10;58(11):2817-2822. doi: 10.1364/AO.58.002817.
A technique for measuring the spectral phase of an ultrashort pulse is developed based on the dispersive Fourier transformation method, as an alternative to spectral interferometric methods. The pulse spectral phase is measured by transferring the information from the spectral to the temporal domain by stretching the pulse to reach the far field of dispersion. We have implemented the technique through sum-frequency generation by using the laser pulse as a reference and have experimentally demonstrated the direct spectral phase measurement of various amplitude-modulated pulses.
基于色散傅里叶变换方法，开发了一种测量超短脉冲光谱相位的技术，作为光谱干涉测量方法的替代方法。通过拉伸脉冲以到达色散远场，将信息从光谱域转移到时间域，从而测量脉冲光谱相位。我们通过使用激光脉冲作为参考进行和频产生来实现该技术，并通过实验证明了对各种幅度调制脉冲的直接光谱相位测量。
