| Model Number: | 953111108-2 |
The 2*2 5/95 FBT Coupler with FC/APC Output is a fused biconical taper optical coupler designed for asymmetric optical power distribution. It directs most of the input power to the 95% main branch while extracting a smaller portion through the 5% tap branch for optical monitoring, measurement, feedback, or signal-sampling functions.
| I1-O1 Coupling Ratio | I1-O1 IL(dB) | I1-O2 Coupling Ratio | I1-O2 IL(dB) | I2-O1 Coupling Ratio | I2-O1 IL(dB) | I2-O2 Coupling | I2-O2 IL(dB) |
|---|---|---|---|---|---|---|---|
| 96.15 | 0.28 | 3.85 | 14.26 | 96.34 | 0.36 | 3.66 | 14.56 |
| 96.12 | 0.29 | 3.88 | 14.23 | 96.40 | 0.31 | 3.60 | 14.59 |
| 96.45 | 0.32 | 3.55 | 14.66 | 96.24 | 0.28 | 3.76 | 14.36 |
| 96.43 | 0.28 | 3.57 | 14.59 | 96.40 | 0.32 | 3.60 | 14.60 |
| 96.28 | 0.35 | 3.72 | 14.48 | 96.31 | 0.28 | 3.69 | 14.45 |
| 96.17 | 0.28 | 3.83 | 14.28 | 96.17 | 0.36 | 3.83 | 14.36 |
| 96.12 | 0.34 | 3.88 | 14.28 | 96.30 | 0.29 | 3.70 | 14.44 |
| 96.39 | 0.28 | 3.61 | 14.54 | 96.20 | 0.29 | 3.80 | 14.32 |
| 96.12 | 0.30 | 3.88 | 14.24 | 96.31 | 0.32 | 3.69 | 14.49 |
| 96.12 | 0.30 | 3.88 | 14.24 | 96.41 | 0.29 | 3.59 | 14.58 |
| 96.49 | 0.28 | 3.51 | 14.67 | 96.30 | 0.28 | 3.70 | 14.43 |
| 96.45 | 0.30 | 3.55 | 14.64 | 96.26 | 0.31 | 3.74 | 14.42 |
| 96.28 | 0.28 | 3.72 | 14.41 | 96.29 | 0.39 | 3.71 | 14.53 |
The white 95% output lead is specified with an FC/APC connector. The 5% orange output lead and the two input-side leads are supplied without connectors, subject to final confirmation of the port configuration.
The FC/APC connector uses an angled physical-contact end face to help reduce optical back reflection. It is suitable for the main transmission branch in applications where return reflection may affect laser stability, measurement accuracy, or system performance.