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Updated: Jun 26, 2025

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Fourier transform with matched non-linear frequency modulation in femtosecond laser ranging with imbalanced
A S Bychkov1, P V Kubasov1, V G Kamenev1
1Dukhov Research Institute of Automatics (VNIIA), Moscow 127055, Russia.
Abstract:
We propose a new algorithm based on the Fourier transform with matched non-linear frequency modulation for processing femtosecond laser ranging data. The algorithm allows us to compensate for both the influence of the third-order dispersion in the fiber-based dispersive Fourier spectrometer and the influence of imbalanced second- and third-order dispersions in the interferometer. Computer simulations and experimental results show that the proposed algorithm significantly increases the accuracy of measuring the position of an object at larger displacements than the well-established non-linear time stretching.
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