Gracyfiber’s PM Fiber Polarizer is a high-extinction, in-line device engineered to deliver precise linear polarization across 780–1950 nm. Optimized for quantum, telecom, laser, and sensing systems, it combines ultra-low insertion loss (down to 0.3 dB) with exceptional polarization purity (ER up to 30 dB).
Built with precision-aligned PM fiber and available in compact, robust packages, this polarizer supports power levels up to 5W — making it the ideal choice for demanding applications where signal fidelity and stability are critical.
| Parameter | Unit | Value | |||||||||
| Port Type | – | 1X1 | |||||||||
| Operating Wavelength | nm | 780 | 850 | 980 | 1064 | 1310 | 1480 | 1550 | 1950 | ||
| Operating Bandwidth | nm | ±30 | ±30 | ±30 | ±30 | ±50 | ±30 | ±50 | ±30 | ||
| Typ.Insertion Loss | dB | 0.6 | 0.4 | 0.3 | 0.9 | ||||||
| Max.Insertion Loss | dB | 1.0 | 0.6 | 0.5 | 1.1 | ||||||
| Typ. Extinction Ratio | dB | 28 | 30 | 30 | 22 | ||||||
| Max. Extinction Ratio | dB | 25 | 28 | 28 | 20 | ||||||
| Return Loss | Min | dB | 50 | ||||||||
| Power Handing | Max | W | 0.3, 1, 3, 5 | ||||||||
| Fiber Type | Input | – | 780-HP/ PM780-HP | HI 1060 / PM980 | SMF-28e /PM1300 /PM1550 | SM 1950 | |||||
| Output | – | PM780-HP | PM980 | PM1300 | PM1550 | PM1550 | PM1950 | ||||
| Fiber Coating | mm | 0.25 / 0.9/2.0/3.0mm Red/Black loose tube | |||||||||
| Fiber Length | cm | 100 | |||||||||
| Connector | – | FC/APC,FC/UPC,or Customized | |||||||||
| Dimensions (HxWxD) | 250μm Bare Fiber | mm | φ5.5×35 | ||||||||
| 900μm Loose Tube | mm | φ5.5×38 | |||||||||
| 2mm/3mm Tube | mm | 90×20×10,100×80×10 | |||||||||
| 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.
Part Number Configuration

