| Parameter | Unit | Value |
|---|---|---|
| Coupling Ratio | % | 25:25:25:25 |
| Type | - | 4x4 |
| Center Wavelength | nm | 1550 |
| Operating Bandwidth | nm | ±15 |
| Max. Excess Loss | dB | 1.2 |
| Insertion Loss | 7.5 | |
| Min. Extinction Ratio | dB | 20 |
| Min. Directivity | dB | 50 |
| Max. Return Loss | dB | 50 |
| Max. Optical Power (CW) | mW | 300 |
| Fiber Type | - | PM1550 fiber, 900mm Loose Tube |
| Package Dimensions | mm | 100*80*10 |
| Operating Temperature | ℃ | -5~+75 |
| Storage Temperature | ℃ | -40~+85 |
With connectors, the handling power is 50mW only, IL is 0.3dB higher, RL is 5dB lower, and ER is 2dB lower.
Connector key is aligned to slow axis.

PMFUC-①①①①-②②-③③③-④-⑤-⑥-⑦-⑧


1. What specifications can be customized?
Operating wavelength, package size, pigtail type, fiber length, and connector type can be customized. The ordering information on the page shows that pigtail options include bare fiber, 900μm loose tube, 2.0mm loose tube, and 3.0mm loose tube; fiber length options include 0.8m, 1.0m, or customized; connector options include FC/UPC, FC/APC, SC/UPC, SC/APC, no connector, or customized.
2. How do you ensure product quality and consistency before shipment?
As a professional supplier of polarization-maintaining passive components, we can test insertion loss, additional loss, splitting ratio, extinction ratio, return loss, directivity, port definition, connector endface, and appearance. This page shows that the product is ISO9001 and RoHS certified, with an MOQ of 1 piece and a monthly supply capacity of 100,000 pieces, supporting sample verification and bulk delivery.