Description
1850nm Faraday Rotator Mirror
1850nm Faraday Rotator Mirror is a fiber component which can change state of polarization (SOP), the polarization light will rotate 45° when the input light passes the faraday rotator, and will rotate another 45° after the mirror turns the light back, the output light will have a polarization state rotated 90°, and orthogonal to the input polarization state. It’s widely used in Fiber Laser, Fiber Amplifier System and Fiber Optic Sensor. High power version is available upon request
| Application: | Features: |  |
| Fiber Optic Amplifier | High Extinction Ratio | |
| Fiber Optic Sensor | High Power Available | |
| Fiber Laser | Low Insertion Loss | |
| Lab And Research | High Reliability |
Specification:
| Parameter | Symbol | Value |
Unit | |
| Wavelength | λ | 1850 | nm | |
| Bandwidth | BW | ±15 |
nm | |
| Faraday Rotate Angle (Single Pass) | 45±3 | 90±3 | degree | |
| Typ. Insertion Loss | IL | 0.5 | 0.8 | dB |
| Max. Insertion Loss | IL | 0.9 | 1.2 | dB |
| Min. Extinction Ratio (for PM fiber) | ER | 18 | dB | |
| Max. PDL (for SM fiber) | PDL | 0.15 | dB | |
| Max. Optical Power (CW) | P | 500 or specify |
mW | |
| Max. Tensil Load | 5 |
N | ||
| Fiber Type | PM Panda or SM fiber |
– | ||
| Operating Temperature | T | -5~70 |
℃ | |
| 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, slow axis is default aligned to the connector key. |
Drawing:
Ordering Information (Part Number):
| FRM-WWWW-A-FF-J-LL-CC | |||||
| WWWW | A | FF | J | LL | CC |
| Wavelength | Rotate Angle | Fiber Type | Fiber Jacket | Fiber Length | Connector |
| 1850 – 1850nm | 4 – 45° (Total 90°) | P5 – PM 1550 | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 1860 – 1860nm | 9 – 90° (Total 180°) | P9 – PM 1950 | 9 – 900um Loose Tube | 10 – 1.0m | FA – FC/APC |
| 1870 – 1870nm | S2 – SMF-28e | 2 – 2.0mm Loose Tube | 15 – 1.5m | FU – FC/UPC | |
| 1890 – 1890nm | S9 – SM 1950 | 3 – 3.0mm Loose Tube | 20 – 2.0m | SA – SC/APC | |
| SSSS – Specify | SS – Specify | SU – SU/APC | |||
| LA – LC/APC | |||||
| LU – LC/UPC | |||||
| SS – Specify | |||||
Example: FRM-1850-4-P5-9-10-FA is the PN for 1850nm Faraday Rotator Mirror, 45° single pass rotate angle, PM 1550 Panda fiber, 900um loose tube, 1.0m fiber length, FC/APC connector
