PM 850nm VOA
This PM850 Variable Optical Attenuator delivers precise optical power control with high accuracy and low insertion loss, specifically designed for polarization-maintaining systems operating at 850nm. It features a wide attenuation range up to 60dB and maintains excellent extinction ratio and polarization characteristics.
Ideal for power equalization, optical sensing, laboratory testing, and transmission systems, the VOA supports PM850 and PM780 fibers and is available with various connector types and fiber lengths to meet diverse application requirements.
Description
| Features | Applications |
| Low Insertion Loss | Power equalizer |
| High accuracy | Optic sensor |
| Wide attenuator range | Laboratory test |
| Wavelength/polarization | GFF |
| Stable and reliable performance | Optic transmission system |
| Performance Specifications | ||
| Parameters | Value | Value |
| Wavelength (nm) | 850±50 | 850±51 |
| Attenuator (dB) | 0.3~60 | 0.3~61 |
| Accuracy (dB) | 0.02 | 1.02 |
| Insertion Loss (Typ.) (dB) | 0.6 | 1.6 |
| Min. Extinction Ratio（dB） | 20 | 21 |
| Return Loss (dB) | 60 | 61 |
| Polarization、dependant、loss、PDL(dB) | ≤0.1 for 0-20dB attenuation ≤0.2 for 20-60 dB attenuation | ≤0.1 for 0-20dB attenuation ≤0.2 for 20-61 dB attenuation |
| axial direction | fast axis, slow axis | fast axis, slow axis |
| Operating Temperature (°C) | -20℃~＋75℃ | -20℃~＋76℃ |
| Storage Temperature (°C) | -40℃~＋85℃ | -40℃~＋86℃ |
| Optical fiber model | PM850 | PM851 |
| Polarization Dependent Loss (dB) | ≤0.15 | ≤0.16 |
| Directivity (dB) | ≤0.1 | ≤0.2 |
| Maximum Power Handling (mW) | 500 | 501 |
| Dimensions (mm) | 26*18*8 | 26*18*9 |
| Ordering Information | |||||
| Lens Type | Attenuation value | wavelength | Fiber Type | Connector | Fiber length |
| 0.1dB | 850nm | 1=Bare fiber | FC/PC | 0=0.5m | |
| 0.2dB | 2=900umLoose tube | FC/APC | 1=1m | ||
| 0.3dB | 3=pm850 | SC/PC | 2=2m | ||
| 0.4dB | 4=pm780 | SC/APC | ect. | ||
| …… | ect. | ||||
