Project Description
850nm In-line Polarizer
The 850nm In-line Polarizer is designed to pass light with one specific polarization while blocking the other polarization. It can be used to convert no-polarized light into polarized light with high extinction ratio. It can also be used to enhance the extinction ratio of signals with its excellent polarization properties. It is ideal for high speed communication systems and test instrumentation where high polarization extinction ratio is required.
If you do not see a standard In-line Polarizer that meets your needs, we welcome the opportunity to review your desired specification and quote a custom In-line Polarizer . Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.
| Features | Applications |
| · Low Insertion Loss
· High Power Handling · High Extinction Ratio · Low Cost · High Reliability |
· Fiber Amplifiers
· Fiber lasers · Fiber Sensor · Test and Measurement · Communications System |
Performance Specifications
| Parameter | Unit | Values | |
| Operating Wavelength | nm | 780, 850 | |
| Bandwidth | nm | ±30 | |
| Typ. Insertion Loss@23℃ | dB | 0.6 | |
| Max. Insertion Loss@23℃ | dB | 1.0 | |
| Typ. Extinction Ratio | dB | 28 | |
| Min. Extinction Ratio | dB | 25 | |
| Min. Return Loss | dB | 50 | |
| Fiber Type In/Out | Option 1 | – | PM850 Fiber→PM850 Fiber |
| Option 2 | – | HI780 Fiber→PM850 Fiber | |
| Option 3 | – | HI780 Fiber→HI780 Fiber | |
| Max. Power Handling | W | 0.5, 1, 3, 5, 10 | |
| Max. Tensile Load | N | 5 | |
| Operating temperature | ℃ | -5~+70 | |
| Storage temperature | ℃ | -40~+85 | |
| Dimension | mm | Φ5.5×L35 | |
*Above specifications are for device without connector.
*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. The default connector key is aligned to slow axis. Power transmits through the connector less than 2W.
*For >10W high power applications, we will use heat sink package, contact DK Photonics for details.
Package Dimension
*Due to ongoing design improvements, the package size is subject to change. Please contact DK Photonics for confirmation.
Order information P/N: ILP-①-②-③-④-⑤-⑥
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
| ① | ② | ③ | ④ | ⑤ | ⑥ |
| wavelength | Power Handling | Fiber Type | Pigtails Diameter | Fiber Length | Connector |
| 78:780nm
85:850nm XX:Others |
L:<0.5W
1:1W 3:3W 5:5W |
1:PM -PM
2:SM- PM 3:SM-SM |
25:250μm bare fiber
90:900μm Loose Fiber XX: Others |
08:0.8m
10:1.0m XX:Others |
00:None
FP: FC/PC FA: FC/APC SP: SC/PC SA: SC/APC XX: Others |
Part Number Example: ILP-85-1-1-90-10-FA
Description: 850nm In-line Polarizer, 0.5W Power, PM fiber to PM fiber, with 0.9mm OD loose tube, 1.0m length fiber and FC/APC connectors at all ports.
Ordering Information for Custom Parts
If you need to customize other specifications, please provide detailed description for your requirement.
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