4 port Optical Circulator
Four-port Polarization Insensitive 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.
Description
Product Features & Applications
| Features | Applications |
| Low Insertion Loss | Optical Amplifier |
| Wide Band High Isolation | Pump Laser Source |
| Low PDL | Fiber Optic Sensor |
| High Stability and Reliability | Test and Measurement |
| Epoxy Free on Optical Path | Fiber Optic Instrument |
Performance Specifications
| Parameter | P Grade | |
| Configuration | Port 1 to 2、Port 2 to 3、Port 3 to 4 | |
| Operating Wavelength（nm） | 1310±30 or 1550±30 | |
| Isolation (dB) | Typical | ≥50 |
| Maximum | ≥30 | |
| Insertion Loss (dB) | Typical | 1 |
| Maximum | 1.2 | |
| Cross Talk (dB) | ≥50 | |
| Polarization Dependent Loss (dB) | ≤0.2 | |
| Return Loss (dB) | ≥50 | |
| Polarization Mode Dispersion | ≤0.1 | |
| Maximum Power Handling (mW) | 300 | |
| Operating Temperature (℃) | -10~+75 | |
| Storage Temperature (℃) | -40~+85 | |
| Package Dimension (mm) | Φ5.5xL68 | |
Ordering Information
| Product | Wavelength | Fiber Type | Connector | Fiber Length |
| 3=3 port | 1310nm | 1=Bare fiber | FC/PC | 0=0.5m |
| 4=4 port | 1550nm | 2=900um Loose tube | FC/APC | 1=1m |
| SC/PC | 2=2m | |||
| SC/APC | ect. | |||
| ect. |
