A Floquet quasi-phase-matching theory and truncated multimode simulations show that nonlinear gas-filled multipass cells can exhibit geometric parametric instability, generating tunable discrete sidebands from a Gaussian pump.
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Geometric Parametric Instability in Nonlinear Multipass Cells
A Floquet quasi-phase-matching theory and truncated multimode simulations show that nonlinear gas-filled multipass cells can exhibit geometric parametric instability, generating tunable discrete sidebands from a Gaussian pump.