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Opt Lett. 2012 Dec 15;37(24):5109-11. doi: 10.1364/OL.37.005109.

Temporal switching induced by cascaded third order nonlinearity.

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  • 1Institute of Applied Physics, Abbe Centre of Photonics, Friedrich-Schiller-Universit├Ąt Jena, M.-Wien-Platz 1, Germany.


We investigate the impact of cascaded third harmonic generation and the intrinsic n4 material nonlinearity on the propagation of ultrashort pulses in noble-gas filled Kagome fibers. We show that the pressure tunability of the cascade allows for the implementation of temporal switching. We also investigate the relative strengths of both effects and show their ratio to be pressure tunable.

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