Figure 7: Modulation depth 𝑇 ( 𝜅 = 1 ) / 𝑇 ( 𝜅 = 0 ) (black curve) and insertion loss (red curve) of the side-coupled-cavity switch (Figure 5(a)) as a function of the stub width 𝑤 . For each stub width 𝑤 , the stub length 𝐿 is equal to the first resonant length of the cavity. All other parameters are as in Figure 5(b).