Table 2 Optimal coupling length for different configurations supporting weakly confined silicon photonic modes at 1.55 μm (w = 300 nm, S = 500 nm).
Configuration (λ = 1.55 μm) | Optimal L c (μm) |
|---|---|
Silicon pair without array | 14.6 |
Silicon pair with a single strip | 21.3 |
Silicon pair with two strips | 40.6 |
Silicon pair with three strips | 68.8 |
Silicon pair with four strips | 99.9 |
Silicon pair with five strips | 130.9 |
Silicon pair with six strips | 160.4 |
