1550nm Polarization Maintaining Optical Circulator 3 Port PM Fiber Optic Circulator Low Insertion Loss High Isolation for EDFA Fiber Laser and Sensor
This product is a 1550nm Polarization Maintaining Optical Circulator, with a standard 3-port structure: Port1→Port2, Port2→Port3 unidirectional transmission, used for isolating reflected light, achieving directional optical path transmission, and port multiplexing.
| Parameters | Unit | Value |
|---|---|---|
| Operating wavelength | nm | 1550 |
| Bandwidth | nm | ±30 |
| Typ. Isolation | dB | 46 |
| Isolation | dB | ≥40 |
| Typ. Insertion Loss | dB | ≤0.7 |
| Insertion Loss@-5 to +70 | dB | ≤0.9 |
| Extinction Ratio | dB | ≥22 |
| Cross Talk | dB | ≥50 |
| Return loss | dB | ≥50 |


