Figure 7
From: On-chip passive three-port circuit of all-optical ordered-route transmission
Path priority selector.
The green and red arrows indicate the transmission routes and input ports of strong power, respectively. Marks of on and off stand for the working states of the three routes (1→2, 2→3, 3→1) with input at (a) only Port 1, (b) only Port 2, (c) only Port 3, (d) Port 1 and Port 2, (e) Port 2 and Port 3, (f) Port 1 and Port 3, respectively.
