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Updated: Jul 4, 2026
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
All-optical tunable group-velocity control of femtosecond pulse by quadratic nonlinear cascading interactions
Wenjie Lu1, Yuping Chen, Lihong Miu
1Department of Physics, State key lab of advanced optical communication systems and networks, Shanghai Jiaotong University, 200240, Shanghai, China.
Abstract:
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.
