| 385 / | HD | OPTICAL WAVEGUIDES |
| 15 | ![]() | WITH OPTICAL COUPLER {8} |
| 16 | DF | .~> Switch (i.e., switching from one terminal to another, not modulation) {6} |
| 24 | DF | .~> Plural (e.g., data bus) |
| 25 | DF | .~> Movable coupler {1} |
| 27 | DF | .~> Particular coupling function {2} |
| 31 | DF | .~> Input/output coupler {5} |
| 39 | DF | .~> Particular coupling structure {10} |
| 51 | DF | .~> Permanently fixed coupler |
| 52 | DF | .~> With alignment device |