Numerical Modelling of the Microcavity OPO
D. M. Whittaker
TL;DR
This paper presents a numerical model of a microcavity optical parametric oscillator, demonstrating how high pump powers lead to ring-shaped signal emission with low central intensity.
Contribution
It introduces a detailed 2D time-domain numerical model of the microcavity OPO using an implicit method, revealing new spatial emission patterns at high pump powers.
Findings
Signal forms a ring at high pump powers
Low emission occurs at the center where pumping is strongest
Model uses a 2D grid and implicit time-stepping
Abstract
A detailed description is provided of a numerical model of the microcavity optical parametric oscillator (OPO). The model is solved on a two dimensional grid, in the time domain, using an alternating-direction implicit method. Results are presented for a system pumped with a gaussian spatial profile beam. It is shown that at high pump powers the OPO signal forms a ring, with low emission at the centre where the pumping is strongest.
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