Description
850nm PM 4-port Optical Circulator
850nm PM 4-port Optical Circulator is a fiber passive component built with TGG crystal, which can change signal light transmission path, one signal can be delivered from Port 1 to Port 2, the second signal light from Port 2 to Port 3, the third signal from port 3 to port 4, the high isolation can block the back reflection light. It’s widely used in Quantum Communication, Fiber Laser and Coherent Detecting field. High Power version is available upon request.
| Application: | Features: |  |
| Quantum Communication | High Extinction Ratio | |
| Fiber Laser | High Isolation | |
| Coherent Detecting | Low Insertion Loss | |
| Lab & Research | High Reliability |
Specification:
| Parameter | Symbol | Value | Unit |
| Center Wavelength | λ | 850 | nm |
| Bandwidth | BW | ±5 | nm |
| Typ. Insertion Loss (Port 1 to 2, 2 to 3, 3 to 4) | IL | 1.2 | dB |
| Max. Insertion Loss (Port 1 to 2, 2 to 3, 3 to 4) | IL | 1.5 | dB |
| Typ. Isolation (Port 2 to 1, 3 to 2, 4 to 3) | ISO | 25 | dB |
| Min. Isolation (Port 2 to 1, 3 to 2, 4 to 3) | ISO | 22 | dB |
| Min. Extinction Ratio | ER | 20 | dB |
| Min. Cross Talk |
Ct | 45 | dB |
| Min. Return Loss | RL | 45 | dB |
| Max. Optical Power (CW) | P | 500 or customized | mW |
| Max. Tensil Load | 5 | N | |
| Fiber Type | PM Panda fiber | – | |
| Operating Temperature | T | +10~50 | ℃ |
| Storage Temperature | T | 0~60 | ℃ |
| Package Dimension | 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, ER will be 2dB lower, slow axis is default aligned to the connector key. |
Drawing:
Ordering Information (Part Number):
| PMCIR-WWW-P-J-LL-CC |
|||||
| WWW | P | A | J | LL | CC |
| Wavelength | Port | Working Axis | Fiber Jacket | Fiber Length | Connector |
| 800 – 800nm | 4 – 4 Ports | F – Fast Axis Blocked | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 808 – 808nm | Slow Axis Working | 9 – 900um Loose Tube | 10 – 1.0m | FA – FC/APC | |
| 810 – 810nm | B – Both Axes Working | 2 – 2.0mm Loose Tube | 15 – 1.5m | FU – FC/UPC | |
| 820 – 820nm | 3 – 3.0mm Loose Tube | 20 – 2.0m | SS – Specify | ||
| 830 – 830nm | SS – Specify | ||||
| 850 – 850nm | |||||
| 895 – 895nm | |||||
| SSS – Specify | |||||
Example: PMCIR-850-4-B-9-10-FA is the PN for 850nm PM 4-port Optical Circulator, Both Axes Working, 500mW, 1.0m PM Panda fiber, 900um loose tube, FC/APC connector
