| Control Factors | Level 1 | Level 2 | Level 3 | Level 4 | Level 5 |
| Horizontal offset(s) in mm | “0” | “0.2” | “0.4” | “0.6” | “0.8” |
| Vertical offset(h) in mm | “−1.0” | “−0.5” | “0” | “0.5” | “1.0” |
| Source fiber angle in degrees | “0” | “5” | “10” | “15” | “20” |
| Receiver fiber angle in degrees | “0” | “5” | “10” | “15” | “20” |
| Core radius in mm | “0.1” | “0.2” | “0.3” | “0.4” | “0.5” |