All-optical tunable group-velocity control of femtosecond pulse by quadratic nonlinear cascading interactions.
نویسندگان
چکیده
Based on cascading nonlinear interactions of second harmonic generation (SHG) and difference frequency generation (DFG), we present a novel scheme to control the group velocity of femtosecond pulse in MgO doped periodically poled lithium niobate crystal. Group velocity of tunable signal pulse can be controlled by another pump beam within a wide bandwidth of 180nm. Fractional advancement of 2.4 and fractional delay of 4 are obtained in our simulations.
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ورودعنوان ژورنال:
- Optics express
دوره 16 1 شماره
صفحات -
تاریخ انتشار 2008