Project Description
2.0μm SM Fused WDM
DK Photonics uses unique fusing technique to build the 2000nm polarization maintaining fused WDM. It features low excess loss, small size and high polarization extinction ratio. SM fused WDM is widely used for fiber laser, optical sensors and optical gyro.
This product can also be used to multiplex other wavelengths. including 650/2000nm,and 793/2000 nm ,and 1550/2000nm. Low power (300 mW, 500 mW) and high power (20W) handling are available. They are ideal for polarization maintaining fiber amplifiers, fiber lasers, and high speed communication system and instrumentation applications.
| Features | Applications |
| · Low Insertion Loss
· Low Polarization Dependent Loss · High Return Loss · High Isolation · High stability & Reliability |
· Fiber laser
· Fiber amplifier · Fiber Sensor · Monitoring in Coherent Systems · Communications |
Performance Specifications
| Parameter | Unit | Values | ||
| Port Configuration | – | 1×2 | ||
| Longer Operating Wavelength | nm | 1960±20, 2000±20 or Specify | ||
| Min. Isolation at 23℃ | dB | 13 | ||
| Max. Insertion Loss at 23℃ | dB | 0.6 | ||
| Max. PDL at 23℃ | dB | 0.2 | ||
| Shorter Operating Wavelength | nm | 1550±20 | 793±20 | 650±20 |
| Max. Insertion Loss at 23℃ | dB | 0.5 | 0.7 | 1.5 |
| Min. Isolation at 23℃ | dB | 15 | 15 | 10 |
| Max. Thermal Stability | dB/℃ | 0.005 over -5 °C to +70 °C | ||
| Min. Return Loss | dB | 55 | ||
| Min. Directivity | dB | 55 | ||
| Max. Optical Power(CW) | W | 1, 3, 5, 10, 20 | ||
| Fiber Type | – | SMF-28e fiber or SM1950 fiber | ||
| Operating Temperature | ℃ | -5~+70 | ||
| Storage Temperature | ℃ | -40~+85 | ||
| Package Dimension | mm | Ф3.0×54(bare fiber),or Ф3.0×70(900μm loose tube) | ||
- Above specifications are for device without connector.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmit through the connector less than 2W.
- For >10W high power applications, we will use heat sink package, contact DK Photonics for details.
Package Dimension
Order information P/N: FBTWDM-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 | Fiber Type | Pigtails Diameter | Fiber Length | Connector |
| 102:1×2 | 2055:2000/1550nm
2093:2000/793nm 2065:2000/650nmXX:Others |
L:<0.5W
1:1W 3:3W 5:5W 10:10W |
S28: SMF-28e fiber
S19: SM1950 fiber X: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 SP: SC/PC SA: SC/APC LP: LC/PC LA: LC/APC XX: Others |
Part Number Example: FBTWDM-102-2093-L-P19-90-10-FA
Description: 2000/793nm 1×2 SM Fused WDM – 0.5W, 1.0m SM 1950 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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