Spatiotemporal focusing through a multimode fiber via time-domain wavefront shaping
arXiv:2010.12014 · doi:10.1364/OE.412714
Abstract
We shape fs optical pulses and deliver them in a single spatial mode to the input of a multimode fiber. The pulse is shaped in time such that at the output of the multimode fiber an ultrashort pulse appears at a predefined focus. Our result shows how to raster scan an ultrashort pulse at the output of a stiff piece of square-core step-index multimode fiber and in this way the potential for making a nonlinear fluorescent image of the scene behind the fiber, while the connection to the multimode fiber can be established via a thin and flexible single-mode fiber. The experimental results match our numerical simulation well.
arXiv commentV2:29 pages including appendices, 9 figures (1 new), several updated, many improvements throughout
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