Figure 2: Result of whispering gallery mode of light within a PANDA, waveguide InGaAsP/InP, R1 = R2 = 0.775 μm, Rad = 1.565, Aeff = 0.3 μm2, neff = 3.14, n2 = 1.3 x 10-13 cm2/W , κ1 = κ2 = κ3 = κ4 = 0.5, γ = 0.01, λ0 = 1,550 nm.