Adder |
| Unit delay | Gates count | Beam combiners | Polarization converters |
TSD | DESIGN1 | 7 | 36 | 14 | 14 |
DESIGN2 | 4 | 24 | 26 | 12 | |
DESIGN3 | 2 | 11 | 9 | 9 | |
QSD | DESIGN1 | 8 | 54 | 20 | 18 |
DESIGN2 | 4 | 27 | 8 | 17 | |
MSD | DESIGN2 | 4 | 10 | 11 | 7 |