Dispersion Compensation Module
DCF-based Passive Dispersion Compensation Module for Pre-compensation, Symmetrical-compensation and Post-compensation in DWDM Networks. 20km, 40km, 60km, 80km, 100km Optional.
Description
Description
Dispersion Compensation Module
Dispersion Compensation Fiber is a new kind of single mode optical fiber designed for current G.652 and G.655 standard single-mode optical fiber. The dispersion of G.652 optical fiber near the wavelength of 1550nm is positive (17-20) ps/nm (km), and the dispersion of G.655 standard optical fiber near the wavelength of 1550nm is positive (4-6)ps/nm (km), with a positive dispersion slope. Therefore, it is necessary to add dispersion compensation fiber with negative chromatic dispersion value in the C-Band (1525nm to 1565nm) into the optical fiber for dispersion compensation, so that the total dispersion of the entire optical fiber line is close to zero, thereby achieving high speed, large capacity and long distance communication.
The DCF-based Dispersion Compensation Module (DCM) is designed to fix the form of optical signals that are deformed by chromatic dispersion. The module offers a high level of compensation while maintaining a low flat insertion loss. When combined with EDFA and OEO, DCM provides a simple, reliable, and cost-effective long-haul transport solution, making signals go further without regeneration.
DCM in DWDM Networks
Specifications
| DCM 20km | DCM 40km | DCM 60km | DCM 80km | DCM 100km | DCM 120km | |
| Equivalent G.652 Compensation Distance | 20km | 40km | 60km | 80km | 100km | 120km |
| 1545nm Wavelength Dispersion | -340±20ps/nm | -670±30ps/nm | -1000±40ps/nm | -1340±50ps/nm | -1670±60ps/nm | -2040±60ps/nm |
| 1545nm Wavelength Relative Dispersion Slope | 0.004±20%(nm-1) | 0.004±20%(nm-1) | 0.004±20%(nm-1) | 0.004±20%(nm-1) | 0.004±20%(nm-1) | 0.004±20%(nm-1) |
| Insertion Loss | ≤3.6dB | ≤4.8dB | ≤6.8dB | ≤8.7dB | ≤9.7dB | ≤11.5dB |
| Polarization Mode Dispersion | ≤0.6ps | ≤0.9ps | ≤1.0ps | ≤1.0ps | ≤1.0ps | ≤1.0ps |
| Polarization Dependent Loss | ≤0.5dB | ≤0.5dB | ≤0.5dB | ≤0.5dB | ≤0.5dB | ≤0.5dB |
| Optical Reflection | -27dB | -27dB | -27dB | -27dB | -27dB | -27dB |
| Connector Type | LC/PC or to be customized | |||||
| Operating Temperature | -5°C~70°C | |||||
| Storage Temperature | -40°C~85°C | |||||
| Environmental/Reliability Testing | Conform to Telcordia GR-2854 and GR1221standard | |||||
| Dimension | Plug-in Module 220(L) x 200(W) x 39(H) mm 1U Rackmount 440(L) x 230(W) x 44(H) mm | |||||
