Table 1 Transformations to circular polarisation basis.

From: Multi-stage spontaneous symmetry breaking of light in Kerr ring resonators

 

Clockwise propagating

Counterclockwise propagating

Left Circ. Polarised

\({U}_{1}=\frac{{{{{{{{{\mathcal{E}}}}}}}}}_{cwx}+{{{{{{{\rm{i}}}}}}}}{{{{{{{{\mathcal{E}}}}}}}}}_{cwy}}{\sqrt{2}}\)

\({U}_{3}=\frac{{{{{{{{{\mathcal{E}}}}}}}}}_{ccwx}+{{{{{{{\rm{i}}}}}}}}{{{{{{{{\mathcal{E}}}}}}}}}_{ccwy}}{\sqrt{2}}\)

Right Circ. Polarised

\({U}_{2}=\frac{{{{{{{{{\mathcal{E}}}}}}}}}_{cwx}-{{{{{{{\rm{i}}}}}}}}{{{{{{{{\mathcal{E}}}}}}}}}_{cwy}}{\sqrt{2}}\)

\({U}_{4}=\frac{{{{{{{{{\mathcal{E}}}}}}}}}_{ccwx}-{{{{{{{\rm{i}}}}}}}}{{{{{{{{\mathcal{E}}}}}}}}}_{ccwy}}{\sqrt{2}}\)