| Key Features | Applications |
| Low excess loss | Fixed attenuation |
| High power handling | Testing instruments |
| High stability and reliability | Submarine optical fiber communication |
| Parameter | Unit | Value |
| Center Wavelength (λc) | nm | 975 |
| Operating Wavelength | nm | 970-980 |
| Max. PDL | dB | 0.1 |
| Max. Excess Loss | dB | 0.15 |
| Thermal Stability | dB/℃ | ≤ 0.005 |
| Min. Return Loss | dB | 50 |
| Min. Directivity | dB | 50 |
| Max. Optical Power (Continuous Wave) | W | 4 |
| Fiber Type | - | Nufern 1060 - XP 200 kpsi |
| Operating Temperature | ℃ | 0 to + 45 |
| Storage Temperature | ℃ | - 40 to + 85 |
| Coupling Ratio & Insertion Loss | ||
| Coupling Ratio | % | 01/99 02/98 05/95 10/90 20/80 30/70 40/60 50/50 |
| Max. Insertion Loss, λc | dB | 21.7/0.21 18.4/0.26 13.8/0.40 10.6/0.66 7.6/1.2 5.7/1.8 4.4/2.6 3.4/3.4 |
*IL is 0.5 dB higher, RL is 5 dB lower for each connector added. The Optical Power is 1 W only for connector added.
*Test at center wavelength only
