GEZHI Photonics’ Four-port Optical Circulator is a special type of circulator that has one input (port 1), one output (port 4) and two common ports (port 2&3). The light goes through port 1 to port 2. At port 2, any incoming light is guided to port 3 as output, while all input from port 3 is guided to port 4 as output.
Compared to three-port circulator, four-port device has one additional bi-directional port. Hence, it can be used to construct more flexible or more complex optical fiber sub-systems, such as add/drop module, mux/demux module, multi-port bi-directional splitters, WDM optical router, etc.
Features:
- Low Back Reflection
- High Extinction Ratio
- Low Insertion Loss & High Return Loss
Application
- DWDM system
- Add-Drop Multiplexing
- Fiber Amplifier
- Fiber Sensor
- Chromatic Dispersion Compensation Devices
- Fiber Bragg Grating
Specifications
| Parameter | P Grade | |
| Configuration | Port 1 to Port 2 to Port 3 to Port 4 | |
| Operation Wavelength (nm) | 1310±30 or 1550±30 | |
| Isolation (dB) | Typical | 1.0 |
| Maximum | 1.2 | |
| Typical Isolation (dB) | ≥50 | |
| Minimum Isolation (dB) | ≥30 | |
| Cross Talk (dB) | ≥50 | |
| Polarization Dependent Loss (dB) | <0.2 | |
| Polarization Mode Dispersion | <0.1 | |
| Return Loss(dB) | ≥50 | |
| Power Handling (mW) | 500 | |
| Opterating Temperature () | -10~+75 | |
| Package dimension (mm) | Φ5.5xL68 | |
Specifications may change without notice.
Above specification are for device without connector.
Dimensions
