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DCM: Dispersion Compensation Module

Part of the DWDM/CWDM/OTN transmission

The DCM dispersion compensation is a pure passive device. It can compensate the dispersion slope of standard single-mode optical fiber (G.652) in C-band. And it is used to repair the optical signal distorted by dispersion and compensate the damaged signal in optical transmission system, so as to improve the performance of the transmission system and achieve high-speed, large-capacity, long-distance communication. The dispersion range of the DCM can reach - 10 to - 2100ps/nm at 1550nm wavelength. Products with special requirements for central wavelength and dispersion can be also provided.

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Technical Specifications Related Euipment Related Download

Technical specifications

Function		Parameter
Equivalent G.652 compensation length		20Km	40km	60km	80km	100km	120km
1545nm wavelength dispersion (ps/nm)		-340±20	-670±30	-1000±40	-1340±50	-1670±60	-2040±60
1545nm relative dispersion slope (nm-1)		0.004±20%
Insertion loss (dB)		≤3.5	≤5.0	≤6.8	≤8.7	≤10.7	≤12.9
Polarization mode dispersion (ps)		≤0.5	≤0.8	≤1.0	≤1.2	≤1.3	≤1.4
Polarization dependent loss (ps)		≤0.1	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
Optical reflection (dB)		-27
Maximum permissible input power (dBm)		+23
Working temperature range		-5°C~70°C
Storage temperature range		-40°C~85°C
Environmental/Reliability Testing		Conform to Telcordia GR-2854 and GR1221standard
Interface type		LC/UPC or to be customized
Package type		7209 1RU：442 (W)×250 (D) ×44(H) mm 2901 1RU：442 (W)×250 (D) ×44 (H) mm

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ISEELINK Product catalog

PDF - 8.18 MB - Updated on Wednesday, March 25, 2026

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