Gracyfiber’s PM VOA is a 1-channel device that lets you precisely adjust optical power — from 0 to 60 dB attenuation — while keeping the polarization state unchanged. Built with PM Panda fiber and precision mechanical design, it works across key wavelengths: 780/850nm, 980/1064nm, and 1310/1480/1550nm.
Compact, low-loss, and highly repeatable, this component is ideal for laser systems, telecom, sensing, and quantum setups where both power control and polarization fidelity matter.
| Parameter | Unit | Value | ||||
| Channel Configuration | – | 1CH | ||||
| Center Wavelength | nm | 1310/1480/1550 | 980/1064 | 780/850 | ||
| Operating Bandwidth | nm | ±40 | ±30 | ±20 | ||
| Insertion Loss | Max | dB | 0.5 | 0.6 | 0.7 | |
| Attenuation | Max | dB | 60 | 60 | 50 | |
| Extinction Ratio | Min | dB | 20 | 20 | 18 | |
| Return Loss (Min) | Min | dB | 55 | 55 | 50 | |
| Power Handing (Max) | mW | 500 | ||||
| Fiber Type | – | PM Panda Fibe( 780/ 980/1300/1550) | ||||
| Fiber Coating | µm | 250 µm / 900 µm Blue loose tube | ||||
| Fiber Length | cm | 100 | ||||
| Connector | – | FC/APC,FC/UPC，or Customized | ||||
| Dimensions (HxWxD) | mm | 26 ×18 ×8, 18 ×18 ×8 | ||||
| Operating Temperature | °C | -5~65 | ||||
| Storage Temperature | °C | -40~85 | ||||
Remark:
- Above specifications are for devices without the connectors.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower.
- The PM fiber and the connector key are aligned to the slow axis, fast axis is blocked.
