Figure 5
(a1)–(a3) The high-order modes intensity transmission coefficients of FWM signal of cascaded type at \(\Delta_{ac} = 0\,{\text{MHz}}\). The solid curves represent the transmission peaks with different parameters. The dashed curves are the transmission spectra of empty cavities. (a1) With \(\Delta_{3} /\Gamma_{20} = { - }50\). (a2) With \(\Delta_{3} /\Gamma_{20} = 0\). (a3) With \(\Delta_{3} /\Gamma_{20} = 50\). (b1)–(b3), The details of FWM intensity transmission coefficients in the narrow regions of high-order modes corresponding to (a1)–(a3). (c1)–(c3) The avoided-crossing plots with both scanning \(\Delta_{1}\) and \(\Delta_{ac}\) corresponding to (a1)–(a3).
