Abstract
We demonstrate far-detuned parametric frequency conversion processes in a few mode graded-index optical fibers pumped by a -switched picosecond laser at 1064 nm. Through a detailed analytical and numerical analysis, we show that the multiple sidebands are generated through a complex cascaded process involving inter-modal four-wave mixing. The resulting parametric wavelength detuning spans in the visible down to 405 nm and in the near-infrared up to 1355 nm.
© 2017 Optical Society of America
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