DCM Card

DCM (Dispersion Compensation Module) is a single-mode fiber developed by GIGALIGHT to address the issue of fiber dispersion in high-speed long-distance communication systems. It is designed to compensate for dispersion in standard single-mode fibers that are already deployed. DCM has slope compensation functionality, enabling wideband dispersion slope compensation for standard single-mode fibers in the C-band, optimizing residual dispersion in the system. It is based on mature and reliable fiber technology, enhancing the performance of optical transmission systems. It can achieve a dispersion range of -10 to -2100 ps/nm at a wavelength of 1550nm and can provide products with specific requirements for center wavelength and dispersion.


Product Features

  • Low insertion loss, low polarization mode dispersion
  • Wideband dispersion compensation for DWDM systems
  • Single-mode fiber C-band 100% slope compensation (standard value)
  • Performance complies with Telcordia GR-2854-CORE
  • Reliability complies with Telcordia GR-2854-CORE
  • Available in different packaging styles, connector types, and jumper lengths

Product Parameters

System Parameters Technical Specifications
Dispersion Compensator @1545nm (Ps/nm) 20km 40km 60km 80km 100km
-340±20 -670±20 -1000±20 -1340±20 -1680±20
Relative Dispersion @1545nm (Nm-1) 0.0036±20% (Standard), 0.0036±10% (Advanced)
Insertion Loss @1525-1565nm (dB) ≤3.2 ≤4.5 ≤6 ≤7.7 ≤9.3
Polarization Mode Dispersion (ps) ≤0.7 ≤0.8 ≤0.9 ≤1.0 ≤1.1
Polarization Mode Dispersion (Typical) (ps) 0.2 0.3 0.4 0.5 0.6
Polarization Dependent Loss (dB) ≤0.1
Bragg Scattering Threshold (dBm) Minimum 6
Nonlinear System (n2/Aeff) Maximum 1.4*10-9
Effective Area (Aeff) Minimum 20
Board Size 177 (W) × 40 (H) × 225 (D) (mm)
Environmental Requirements Operating Temperature -10 ~ 70℃
Storage Temperature -40 ~ 80℃
Relative Humidity 5% ~ 95% Non-condensing
Safety and EMC Complies with FCC, UL, CE, TUV, CSA standards

Note: The size of dispersion compensator boards may vary for different distances.

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