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Controllable Raman-like nonlinearities from non-stationary cascaded quadratic processes

F. Ö. Ilday·K. Beckwitt·Y. -F. Chen·H. Lim·F. W. Wise
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Abstract

We show that useful non-instantaneous nonlinear phase shifts can be obtained from cascaded quadratic processes in the presence of group velocity mismatch. The two-field nature of the process permits responses that can be effectively advanced or retarded in time with respect to one of the fields. There is an analogy to a generalized Raman-scattering effect, permitting both red and blue shifts of short pulses. We expect this capability to have many applications in short-pulse generation and propagation, such as the compensation of Raman-induced effects and high-quality pulse compression, which we discuss.

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F. Ö. Ilday, K. Beckwitt, Y. -F. Chen, H. Lim, F. W. Wise. 2003-10-07. Controllable Raman-like nonlinearities from non-stationary cascaded quadratic processes. https://doi.org/10.1364/josab.21.000376

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