r><td class="paramname">param.U</td><td>Unitary matrix describing mode mixing [au] [Default: randomly generated] </td></tr>
    <tr><td class="paramname">param.DGD</td><td>Modulus of DGD/PMD vector [s] [Default: 0] </td></tr>
    <tr><td class="paramname">param.DGD_mode</td><td>How to interpret param.DGD: 'set' = the DGD is param.DGD (only makes sense for SMF); 'random' = the DGD is drawn randomly from an appropriate PDF with this mean. [Default: set] </td></tr>
    <tr><td class="paramname">param.loss</td>