Fixed Dispersion Compensation (DCM)

The Fixed Dispersion Compensation (DCM) module is engineered to counteract the effects of chromatic dispersion in high-speed long-haul optical communication systems. Chromatic dispersion can cause signal degradation over long distances, affecting the performance and reliability of data transmission. By providing wideband dispersion slope compensation specifically in the C-band for standard single-mode fibers, the DCM enhances the quality of the optical signal, ensuring clearer and more reliable communication. This technology is crucial for Dense Wavelength Division Multiplexing (DWDM) systems where multiple channels are transmitted over the same fiber, as it helps maintain signal integrity across different wavelengths.

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Description

Description: The Fixed Dispersion Compensation (DCM) module is engineered to counteract the effects of chromatic dispersion in high-speed long-haul optical communication systems. Chromatic dispersion can cause signal degradation over long distances, affecting the performance and reliability of data transmission. By providing wideband dispersion slope compensation specifically in the C-band for standard single-mode fibers, the DCM enhances the quality of the optical signal, ensuring clearer and more reliable communication. This technology is crucial for Dense Wavelength Division Multiplexing (DWDM) systems where multiple channels are transmitted over the same fiber, as it helps maintain signal integrity across different wavelengths.

Key Features:

  • Low Insertion Loss: Minimizes signal attenuation during the dispersion compensation process, preserving signal strength.
  • Low Polarization Mode Dispersion (PMD): Ensures low PMD, which is essential for maintaining high signal quality and reducing errors in high-speed data transmission.
  • Wideband Dispersion Compensation: Effective across the entire C-band, making it suitable for DWDM systems that operate in this frequency range.
  • Slope Compensation: Provides 100% slope compensation for single-mode fibers, ensuring that the dispersion is corrected uniformly across all wavelengths.
  • High Reliability: Designed to meet Telcordia GR-2854-CORE standards, ensuring long-term performance and durability in various environmental conditions.
  • Flexible Packaging Options: Available in different packaging styles, connector types, and jumper lengths to accommodate various installation requirements and system configurations.
  • Environmental Compliance: Adheres to RoHS and REACH standards, ensuring environmentally friendly manufacturing and operation.
 
Parameter Description
Dispersion Compensation @1545nm 10Km (-170±20 Ps/nm), 20Km (-340±20 Ps/nm), 40Km (-670±20 Ps/nm), 60Km (-1000±20 Ps/nm), 80Km (-1340±20 Ps/nm), 100Km (-1680±20 Ps/nm)
Relative Dispersion @1545nm 0.0036±20% (general), 0.0036±10% (advanced)
Insertion Loss @1525-1565nm ≤2.2 dBm (10Km), ≤3.2 dBm (20Km), ≤4.5 dBm (40Km), ≤6 dBm (60Km), ≤7.7 dBm (80Km), ≤9.3 dBm (100Km)
PMD ≤0.6 ps (10Km), ≤0.7 ps (20Km), ≤0.8 ps (40Km), ≤0.9 ps (60Km), ≤1.0 ps (80Km), ≤1.1 ps (100Km)
PMD (typical) 0.1 ps (10Km), 0.2 ps (20Km), 0.3 ps (40Km), 0.4 ps (60Km), 0.5 ps (80Km), 0.6 ps (100Km)
Polarization Dependent Loss ≤0.1 dB
Brillouin Scattering Threshold Minimum value 6 dBm
Non-linear System Maximum value 1.4*10^-9
Effective Area Minimum value 20 μm²
Board Size 177 mm (W) × 40 mm (H) × 225 mm (D)
Connector Types FC/UPC, SC/UPC, LC/UPC
Packaging Module or Rack-mounted
Environmental Compliance RoHS, REACH
Operating Temperature -10℃ ~ 50℃
Storage Temperature -40℃ ~ 80℃
Relative Humidity 5% ~ 95% non-condensing
Safety and EMC Compliance FCC, UL, CE, TUV, CSA standards

Classic Network Applications

Dispersion compensation equipment is widely used to address the distance limitations in long-distance optical communication transmission caused by dispersion and nonlinear distortion. This equipment is connected in series with the optical communication line and is completely transparent to the service. It can be placed with amplification equipment as needed by the optical communication system.

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