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Generation of large fifth-order nonlinear phase shifts by use of losslessχ (2) cascaded nonlinear processescascaded nonlinear processes

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Abstract

It is shown that the cascaded fifth-order nonlinear phase shifts will increase with energy loss in the cascaded processes. Essentially different from the multi-photon absorption accompanied with inherent material nonlinearities, the loss of fundamental wave in a cascaded process is controllable and suppressible. By introducing difference frequencies generated from the reaction between the fundamental and its second harmonic after the cascaded processes, the fundamental wave can be free of energy loss, while the large cascaded fifth-order nonlinear phase shift is maintained.

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Correspondence to Guang Xu.

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Xu, G., Qian, L., Wang, T. et al. Generation of large fifth-order nonlinear phase shifts by use of losslessχ (2) cascaded nonlinear processescascaded nonlinear processes. Sci China Ser G: Phy & Ast 47, 1–7 (2004). https://doi.org/10.1360/03yw0062

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  • DOI: https://doi.org/10.1360/03yw0062

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