Project Description
1.5μm Filter Coupler (1×2/2×2)
The Filter Coupler using advanced micro-optic filter technology, offers very low excess loss, broad operating band and high stability and reliability. These components are extensively used with large-core double-clad fiber, multi-mode fiber, as these fibers cannot use the FBT process to make fused couplers.
| Features | Applications |
| · Low Insertion Loss
· Broad operating band · Compact In-Line Package · High Stability and Reliability |
· Fiber Optic Instruments
· Fiber Sensors · Coherent Detecting · Research |
Performance Specifications
| Parameter | Unit | Values | |
| Configuration | – | 1×2 | 2×2 |
| Center Wavelength | nm | 1550 | |
| Operating Wavelength Range | nm | ±40 | |
| Tap Coupling Ratio | % | 1±0.5%, 5±2.0%, 10±2.0%, and 50% | |
| Max. Insertion Loss | dB | IL related to CR | |
| Max. Excess Lose | dB | 0.7 | 1.0 |
| Uniformity (Only for 50/50) | dB | 0.5 | 0.7 |
| Min. Return Loss | dB | 50(SM fiber only) | |
| Max. Power Handling | W | 0.5, 1, 2, 5, 10, 20 | |
| Max. Tensile Load | N | 5 | |
| Fiber Type | – |
SM SMF-28e, LMA 25/300DC fiber MM 62.5/125, 50/125, 105/125 µm fiber |
|
| Operating Temperature | ℃ | -5 to +70 | |
| Storage Temperature | ℃ | -40 to +85 | |
| Package Dimensions | mm | Ø5.5 x L35 | |
- above specifications are for device without connector. All parameters are tested at room temperature.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmits through the connector less than 2W.
- For >10W high power applications, we will use heat sink package, contact DK Photonics for details.
- If there is pulse application, please be sure to inform us of pulse energy and peak power.
Package Dimensions
Order information P/N: SMFC-①-②-③-④-⑤-⑥-⑦
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 | ⑦ |
| Port | Operating Wavelength | Power Handling | Coupling Ratio | Pigtails Diameter | Fiber Length | Connector |
| 102:1×2
202:2×2 |
55:1550nm
XX: Others |
L:<0.5W 1:1W 2:2W 10:10W | 50:50/50
40:40/60 30:30/70 20:20/80 10:10/90 01:1/99 XX: Others |
25:250μm bare fiber
90:900μm Loose Tube XX: Others |
08:0.8m
10:1.0m XX: Others |
00: None
FP: FC/PC FA: FC/APC XX: Others |
Part Number Example: SMFC-102-55-L-50-90-10-FA
Description: 1550nm SM Filter 1×2 Coupler- 0.5W, 50:50 coupling ratio, 1.0m SMF-28e fiber with 0.9mm OD loose tube, 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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