Stability, dynamics, and the onset of multi-pulsing in a mode-locked laser cavity using phase-sensitive amplification
Publication year: 2010
Source: Optics Communications, In Press, Uncorrected Proof, Available online 26 February 2010
Simon, Hachey , Christopher R., Jones , J. Nathan, Kutz
An averaged evolution equation is presented and its dynamics studied for a mode-locked laser where the intensity discrimination (saturable absorption) in the cavity is provided by phase-sensitive amplification. The phase-sensitive amplifier acts as a phase-filter for selecting the specific intensity-dependent phase-rotation of the mode-locked pulse that locks the phase to the amplifier pump phase. The resulting averaged equation is a Swift–Hohenberg type model which is a fourth-order diffusion equation with cubic-quintic nonlinearities. Additionally, the governing evolution has a new linear growth term which couples to the nonlocal cavity energy. This parameter is a standard bifurcation parameter in Swift–Hohenberg models and...
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