Figure 3

Spectra of transmission and phase shift.
Transmission coefficient T (a) and phase shift δϕ (b) according to the wavelength in the waveguide side-coupled to the resonator in the absence of pumping and in the presence of pumping where the gain coefficient g21 = 2100 cm−1. The distance between the resonator and the waveguide d = 20 nm. Other parameters are same as in Fig. 2.