Spatiotemporal light-beam compression from nonlinear mode coupling
arXiv:1711.11478 · doi:10.1103/PhysRevA.97.043836
Abstract
We experimentally demonstrate simultaneous spatial and temporal compression in the propagation of light pulses in multimode nonlinear optical fibers. We reveal that the spatial beam self-cleaning recently discovered in graded-index multimode fibers is accompanied by significant temporal reshaping and up to four-fold shortening of the injected sub-nanosecond laser pulses. Since the nonlinear coupling among the modes strongly depends on the instantaneous power, we explore the entire range of the nonlinear dynamics with a single optical pulse, where the optical power is continuously varied across the pulse profile.
6 pages, 5 figures
References in corpus (3)
Cited by in corpus (12)
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