Wuhan ETERN Optoelectronics Technology Co.,Ltd.
Wuhan ETERN Optoelectronics Technology Co.,Ltd. Robust Innovation, Fusion and Win-win
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ETERN three-port FWDM device is mainly used in passive wavelength division multiplexing module. It is a kind of wavelength division multiplexing technology based on TFF (thin film filter). It has a variety of package sizes and wavelength options. It consists of three ports: COM, Pass and Reflect. The difference between FWDM and CWDM is that FWDM can multiplex or de-multiplex two or more optical signals of different wavelengths in a single wide wavelength range channel, as well as increasing signal transmission speed and communication capacity. FWDM device is widely used in telecommunications, radio and television, enterprise network, campus network and other fields
Features
1. Wide operating temperature
2. High reliability and stability
3. Small package size, compact structure and space saving
Applications
1. WDM System
2. PON System
3. Broadcast Cable Television Network
Performance Specification
| Parameter | Units | Value | ||
| Operating wavelength | nm | 1260~1670nm | ||
| 1540~1560 | ||||
| Transmission band | nm | 1524~1544&1596~1625 | ||
| customer specified | ||||
| 1260~1360&1480~1500 | ||||
| Reflection band | nm | 1260~1500&1550~1581&1640~1670 | ||
| customer specified | ||||
| Transmission band insertion loss | dB | ≤0.6 | ||
| Reflection band insertion loss | dB | ≤0.4 | ||
| Transmission Isolation | dB | ≥30 | ||
| Reflection Isolation | dB | ≥15 | ||
| Return loss | dB | ≥50 | ||
| Directivity | dB | ≥50 | ||
| Operating Temperature | ℃ | -40 to +85 | ||
Note:1. Measured with connectors； IL will be 0.3dB worse and RL will be 5dB lower with connectors.
Mechanical Dimensions (Unit: mm)
Ordering Information
| FWDM - | □ | □□- | □ | □□ | □ |
| Spacing | Channel | Fiber Type | Fiber Length | Connector | |
| FWDM | 1=100GHz | C21=C21 | 1=250um SM | 00=Adapter | 1=None |
| 2=200GHz | C22=C22 | 2=900um SM | 05=0.5m | 2=FC/UPC | |
| C=CWDM | 21=1221 | 3=2.0mm SM | 10=1.0m | 3=FC/APC | |
| X=Special | 31=1331 | 4=3.0mm SM | 15=1.5m | 4=LC/UPC | |
| ...... | 20=2.0m | 5=LC/APC | |||
| ...... | 6=SC/UPC | ||||
| 7=SC/APC | |||||
| X=Special | |||||