Mechanism of effective three-photon induced lasing

Fan, H. H.; He, Y. J.; Dong, J. W.; Chen, B. C.; Wang, H. Z.; Tian, Y. P.; Reid, M. F.
January 2010
Applied Physics Letters;1/11/2010, Vol. 96 Issue 2, p021109
Academic Journal
The experimental and theoretical results in this letter reveal that three-photon absorption effect can help light wave to form solitonlike filament; and a stable solitonlike filament is observed in solution with high quintic nonlinearity. This stable solitonlike filament makes pumping infrared laser be localized within the filament and reach high pumping density for a long distance. This high density pumping laser in the filament generates high efficiency lasing induced by three-photon absorption. This work is an approach to make practical application of high order nonlinear optical processes possible.


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