Filter Type Coarse Wavelength Division Multiplexer
Pictures and Schematic Diagram
Built to Telcordia standards, this filter type wavelength division multiplexer features a thin-film filter that rejects a laser line but passes as much non-laser light as possible. Though with a small physical size, this filter type CWDM allow your light-wave signals to reach a greater distance in a way that you can rely on. It transmits multiple wavelengths simultaneously over a single fiber, and is considered an ideal solution for scaling up your fiber capacity, reach, and efficiency. Recent years has seen an increasing popularity of the fiber optic multiplexer in multi-wavelength digital transport architectures. The growing acceptance of CWDM technology is partly due to the fact that this passive optical device uses very low-cost un-cooled DFB laser transmitters and it does not rely on any electric power to operate which increases its reliability.
Features of Filter Type CWDM
Low Insertion Loss
Wide Pass Band
High Channel Isolation
High Stability and Reliability
Epoxy Free Optical Path
Applications of Filter Type CWDM
Line Monitoring
WDM Network
Telecommunication
Cellular Application
Fiber Optical Amplifier
Access Network
Technical Parameters of Filter Type Coarse Wavelength Division Multiplexer
| Parameter | Specification | |
| Pass Channel Wavelength Range (nm) | 1470 to1610 | |
| Center Wavelength Accuracy (nm) | ± 0.50 | |
| Channel Spacing (nm) | 20 | |
| Channel Passband (@-0.5dB bandwidth) (nm) | ≥ 13 | |
| Pass band | Insertion Loss (dB) | ≤ 0.6 |
| Isolation (dB) | ≥ 30 | |
| Reflection band | Insertion Loss (dB) | ≤ 0.5 |
| Isolation (dB) | ≥ 12 | |
| Polarization Dependent Loss (dB) | ≤ 0.10 | |
| Insertion Loss Temperature Sensitivity (dB/℃ ) | ≤ 0.005 | |
| Wavelength Temperature Shifting (nm/°C ) | ≤ 0.002 | |
| Polarization Mode Dispersion (ps) | ≤ 0.10 | |
| Directivity (dB) | ≥ 50 | |
| Return Loss (dB) | ≥ 50 | |
| Max Power Handling (mW) | 300 | |
| Operating Temperature (℃ ) | 0 ~ 70 | |
| Storage Temperature (℃ ) | -40 ~ 85 | |
| Package Dimension (mm) | φ5.5X35 | |
Note: All insertion loss doesn't include connector loss.
For optical multiplexers with connectors, the insertion loss will be 0.3 dB higher.
Order Information
Filter CWDM-A-B-C-D-E-F-G-H
