Gezhi Photonics (Shenzhen) Technology Co., Ltd.
Gezhi Photonics (Shenzhen) Technology Co., Ltd.
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Product Overview of 4 Port Optical Circulator
Fiber Optical 4 Ports 1550nm Circulator For CATV System
Fiber Optical Circulator
4 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 3 port circulator, four port device has one additional bi-directional port. Thus, 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 & Applications of 4 Port Optical Circulator
Features:
Four-port operation
Wide band (+/-30nm at 1310nm or 1550nm)
High isolation
Low PDL
Epoxy free optical path
Applications:
Add/drop WDM systems
Bi-directional communication systems
Optical dispersion compensation systems
Specifications of 4 Port Optical Circulator
| Parameter | P Grade | |
| Operation Wavelength (nm) | 1310±30 or 1550±30 or 1585±30 | |
| Isolation (dB) | Typical | 0.6 |
| Maximum | 0.8 | |
| Typical Isolation (dB) | ≥50 | |
| Minimum Isolation (dB) | ≥40 | |
| Cross Talk (dB) | ≥50 | |
| Polarization Dependent Loss (dB) | <0.15 | |
| Polarization Mode Dispersion | <0.1 | |
| Return Loss(dB) | ≥50 | |
| Power Handling (mW) | 500 | |
| Opterating Temperature (℃) | -10~+75 | |
| Package dimension (mm) | Φ5.5xL50 or Φ5.5xL63 | |
Test Environment
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