Dispersion Compensation Module
DCM
The DCMs offer a high dispersion compensation level and a very low insertion loss penalty. They provide negative dispersion compensation over the full C-Band with possible distance extensions of up to 80 kilometers.
Quantity
Dispersion Compensation Module (DCM)


The Dispersion Compensation Modules are building blocks of the DWDM Optical Transport System and serve at optical communication nodes to correct the pulse spread phenomenon known as Chromatic Dispersion that reduces the maximal transmission distance of data in optical fibers.
dispersion compensation level

insertion loss penalty              maximal transmission distance
  • Dispersion compensation in long haul WDM networks       
  • DWDM system dispersion compensation and broadband low residual dispersion
           
  • G.652 fiber C-band 100% slope compensation (standard value)
  • Low insertion loss
  • Low polarization mode dispersion        
  • Hot swappable
  • Low power consumption
  • Support for 10/40/100/200/400Gbps
  • C-Band Range


Optical compensation function with slope dispersion compensation for standard single-mode fiber can DCM (G.652) were dispersion and dispersion slope compensation broad band in the C-band, allowing the system to optimize residual dispersion. 
In the dispersion compensation value of 1545nm wavelength dispersion can reach -2070ps /nm.

The DCMs offer a high dispersion compensation level and a very low insertion loss penalty. They provide negative dispersion compensation over the full C-Band with possible distance extensions of up to 80 kilometers.

dispersion compensation level

maximal transmission distance
Performance Parameter
ParameterMin.Max.
Brillouin Scattering Threshold(dBm)6-
Non-linear Coefficient (n2/Aeff) (W-1)-1.4*10-9
Effective Area(Aeff)@1550nm (um2)20-
Maximum Input Power(dBm)23
Compensated Distance (km)20/40/60/80 ( Card type, Occupy two slots )
20/40/60/80/100/120KM( >80km, Please choose 1U rack mounted type )
Dimension (mm)191(W)x 253(D)x42(H)

Environment
Operating Temperature (℃)-10℃+60
Storage Temperature (℃)-40℃+85
RelativeHumidity5%~95% Non-condensing




Application Example
dispersion compensation level




Ordering Information
ParameterDCM-20DCM-40DCM-60DCM-80DCM-100DCM-120
Compensated Distance (km)20406080100120
1545nm Dispersion (ps/nm)-340+/-10-670+/-20-1000+/-30-1340+/-40-1680+/-50-2010+/-60
1545nm Relative Dispersion Slope (nm-1)0.0036 +/- 10%
Insertion Loss (dB)≤3.3≤4.7≤6.4≤8.0≤9.5≤11.0
Insertion Loss (typ) (dB)2.74.05.46.78.09.3
Polarization Mode Dispersion (ps)≤0.6≤0.7≤0.8≤0.9≤1.0≤1.1
Polarization Mode Dispersion (typ) (ps)0.20.30.40.50.60.7
Polarization Dependent Loss (dB)≤0.1≤0.1≤0.1≤0.1≤0.1≤0.1





DWDM Series Chassis

insertion loss penaltymaximal transmission distancedispersion compensation level

insertion loss penaltymaximal transmission distanceinsertion loss penalty



DWDM Series Chassis is the foundation for deploying and managing the multi-service mixed-media solutions.
DWDM Series Chassis Optional
CH04 Chassis: 482.5(W) x 350(D) x 44.5(H) mm1U19-inch chassis1 network management slot3 universal service slots
CH08 Chassis: 482.5(W) x 350(D) x 89(H) mm2U19-inch chassis1 network management slot7 universal service slots
CH20 Chassis: 482.5(W) x 350(D) x 222.5(H) mm5U19-inch chassis1 network management slot19universal service slots
Power Consumption: 1U <120W,  2U<200W,  5U<400W
Support SNMP, Web, CLI multiple network management modes
Support dual power supply redundancy protection, Power supplysupport AC: 220V / DC: -48V optional



DWDM Series Chassis support multiple service intermixing:
4x100G to 400G Muxponder4x25G to 100G Muxponder100G SOA Optical Amplifier Card
2x100G to 200G Muxponder25G OEOEDFA Card  (Single fiber or dual fiber version)
100G Transponder10G SFP+OEOOLPOpticalLineProtection (Single fiber or dual fiber version)
40G/100G OEODispersion Compensation Module4/8/16/40/48Channel DWDM MUX/DEMUX, or OADM Card