Description
1940nm PM Fiber Optic Isolator
1940nm PM Fiber Optic Isolator is a fiber passive component built with PM fiber, it allows light signal to be delivered in one forward direction and avoid the back reflection light, it’s widely used in amplifier system, fiber optic sensor system to protect the light source and lower down the optical signal noise. High Power version is available upon request.
| Application: | Features: |  |
| Fiber Amplifier | High Isolation | |
| Fiber Optic Sensor | High Extinction Ratio | |
| Fiber Laser | Low Insertion Loss | |
| Lab & Research | High Reliability |
Specification:
| Parameter | Symbol | Value |
Unit | |
| Center Wavelength | λ | 1940 |
nm | |
| Bandwidth | BW | ±20 |
nm | |
| Stage | Single Stage | Dual Stage | – | |
| Typ. Insertion Loss | IL | 1.0 | 1.2 | dB |
| Max. Insertion Loss | IL | 1.2 | 1.5 | dB |
| Typ. Peak Isolation | ISO | 22 | 42 | dB |
| Min. Isolation | ISO | 20 | 35 | dB |
| Min. Extinction Ratio for Fast Axis Blocked | ER | 22 |
dB | |
| Min. Extinction Ratio for Both Axes Working | ER | 20 | dB | |
| Min. Return Loss | RL | 50 |
dB | |
| Max. Optical Power (CW) | P | 500 or customized | mW | |
| Max. Tensil Load | 5 | N | ||
| Fiber Type | PM Panda fiber | – | ||
| Operating Temperature | T | -5~50 | ℃ | |
| Storage Temperature | T | -40~85 | ℃ | |
| Package Dimension | Φ5.5×L35 | 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, ER will be 2dB lower, RL will be 5dB lower, slow axis is default aligned to the connector key. |
Drawing:
Ordering Information (Part Number):
| PMISO-WWWW-S-A-J-LL-CC |
|||||
| WWWW | S | A | J | LL | CC |
| Wavelength | Stage | Working Axis | Fiber Jacket | Fiber Length | Connector |
| 1900 – 1900nm | S – Single Stage | F – Fast Axis Blocked | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 1940 – 1940nm | D – Dual Stage | Slow Axis Working | 9 – 900um Loose Tube | 10 – 1.0m | FA – FC/APC |
| 1950 – 1950nm | B – Both Axes Working | 2 – 2.0mm Loose Tube | 15 – 1.5m | FU – FC/UPC | |
| 2000 – 2000nm | 3 – 3.0mm Loose Tube | 20 – 2.0m | SA – SC/APC | ||
| 2050 – 2050nm | SS – Specify | SU – SU/APC | |||
| SSSS – Specify | LA – LC/APC | ||||
| LU – LC/UPC | |||||
| SS – Specify | |||||
Example: PMISO-1940-S-F-9-10-FA is the PN for 1940nm PM Fiber Optic Isolator, Single Stage, Fast Axis Blocked, 1.0m PM fiber, 900um loose tube, FC/APC connector
