Three-port optical annulus
Products feature
- Low Insertion Loss
- Wide Band High Isolation
- Low PDL
- Compact In-Line Package
- High Stability and Reliability
- Epoxy Free Optical Path
An optical circulator is a three-port or four-port optical device designed to allow light entering any port to exit from the next port. This means that if light enters port 1, it is emitted from port 2, but if some of the emitted light is reflected back to the circulator, it does not exit from port 1, but from port 3. Fiber circulators are used to separate optical signals moving in opposite directions in optical fibers, such as bidirectional transmission in a single fiber. [1] Because of its high isolation of input and reflected optical power and their low insertion loss, halos are widely used in advanced communication systems and optical fiber sensors.
- Optical Amplifier
- Metro Area Network
- Wavelength Add / Drop
- Dispersion Compensation
- Bi-Direction Communication
Performance Specifications
| Parameter | P Grade | A Grade | |
| Configuration | Port 1 to Port2 to Port 3 | ||
| Operation Wavelength (nm) | 1470 to 1610 | ||
| Insertion Loss (dB) | Typical | 0.7 | 0.8 |
| Maximum | 1.0 | 1.1 | |
| Channel Peak Isolation (dB) | >50@1550nm | ||
| Channel Isolation (dB) | >40@1520nm~1580nm; >32@1470nm~1610nm | ||
| Channel Cross Talk (dB) | >50 | ||
| Polarization Dependent Loss (dB) | <0.15 | ||
| Polarization Mode Dispersion (ps) | <0.1 | ||
| Return Loss (dB) | >50 | ||
| Power Handling (mW) | 300 | ||
| Operating Temperature (°C) | 0 ~ +70 | ||
| Storage Temperature (°C) | -40 ~ +85 | ||
| Dimensions (mm) | ?5.5 x L67 | ||