Description
1260-1650nm 3-port Polarization Insensitive Optical Circulator
1260-1650nm 3-port Polarization Insensitive Optical Circulator is a fiber passive component built with faraday crystal, which can change signal light transmission path, the signal can be delivered from Port 1 to Port 2, the other signal light from Port 2 to Port 3, the high isolation can block the back reflection light. It’s widely used in WDM System, Fiber Optic Sensor and Coherent Detecting field. High Power type is available upon request.
| Application: | Features: | ![]() |
| Fiber Optic Sensor | Low PDL | |
| CWDM, DWDM System | High Isolation | |
| Coherent Detecting | Low Insertion Loss | |
| Lab & Research | High Reliability |
Specification:
| Parameter | Symbol | Value |
Unit | ||
| Center Wavelength | λ | 1310 | 1550 | 1625 | nm |
| Bandwidth | BW | 1260-1650 | nm | ||
| Typ. Insertion Loss | IL | 3.5 | 0.8 | 1.2 | dB |
| Max. Insertion Loss | IL | 4.3 | 1.2 | 1.6 | dB |
| Typ. Peak Isolation | ISO | 16 | 42 | 32 | dB |
| Min. Isolation | ISO | 20 | 35 | 27 | dB |
| Max. Polarization Dependent Loss | PDL | 0.3 | 0.2 | 0.25 | dB |
| Max. Polarization Mode Dispersion |
PMD | 0.3 | dB | ||
| Min. Cross Talk |
Ct | 45 | dB | ||
| Min. Directivity | 50 | dB | |||
| Min. Return Loss | RL | 45 | dB | ||
| Max. Optical Power (CW) | P | 500 | mW | ||
| Max. Tensil Load | 5 | N | |||
| Fiber Type | SMF-28 fiber |
– | |||
| Operating Temperature | T | 0~70 |
℃ | ||
| Storage Temperature | T | -40~85 |
℃ | ||
| Package Dimension | Φ5.5×L50 | mm | |||
| Notice: Above specifications are tested at center wavelength without connector in room temperature @23℃. |
| For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. |
Drawing:

Ordering Information (Part Number):
| PICIR-WW-P-J-LL-CC |
||||
| WW | P | J | LL | CC |
| Wavelength | Port | Fiber Jacket | Fiber Length | Connector |
| AB – All Band (1260-1650nm) | 3 – 3 Ports | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 9 – 900um Loose Tube | 10 – 1.0m | FA – FC/APC | ||
| 2 – 2.0mm Loose Tube | 15 – 1.5m | FU – FC/UPC | ||
| 3 – 3.0mm Loose Tube | 20 – 2.0m | SA – SC/APC | ||
| SS – Specify | SU – SC/UPC | |||
| LA – LC/APC | ||||
| LU – LC/UPC | ||||
| SS – Specify | ||||
Example: PICIR-AB-3-9-10-FA is the PN for 1260-1650nm 3-port Polarization Insensitive Optical Circulator, 500mW, 1.0m SM fiber, 900um loose tube, FC/APC connector

