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DCM dispersion compensation Module board

DCM dispersion compensation Module: 10~100KM DCM
  • Product Detail

DCM dispersion compensation Module board 10~100KM DCM

 

DCM is the negative dispersion optical fiber, which is a new kind of single mode optical fiber designed for current G.652& G.655standard single-mode optical fiber; the dispersion of G.652 optical fiber in the vicinity of 1550nm wavelength is positive (17-20) ps/nm (km), and the dispersion of G.655 standard optical fiber in the vicinity of 1550nm wavelength is positive (4-6) ps/nm (km), with a positive dispersion slope. So we need to add dispersion compensation fiber with negative dispersion into the optical fiber to carry out the dispersion compensation and make sure that the total dispersion of the whole optical fiber line is near zero. Thus high speed, large capacity and long distance communication can be realized.

 

Product Panel

 

 

 

 Dispersion Compensation Principle

 

Dispersion is one of the transmission properties of optical fiber, and the optical pulse signal will be broadened in time after transmission in the fiber for a distance, which produces inter-symbol interference, thus increasing the error rate and affecting the quality of communication.

 


  • The higher the data rate is, more easily the inter-symbol interference will occur
  • The longer the transmission distance is, more easily the inter-symbol interference will occur





Product specification

 

Product Model

DCM20

DCM40

DCM60

DCM80

DCM100

Equivalent G.652 compensationdistance 

20km

40km

60km

80km

100km

1545nm wavelength dispersion(ps/nm)

-340±20

-670±30

-1000±40

-1340±50

-1670±60

1545nm wavelength relative dispersion slope

0.004±20%(nm-1)

Insertion loss

≤3.6 dB

≤4.8 dB

≤6.8 dB

≤8.7 dB

≤9.7 dB

Polarization mode dispersion

≤0.6 ps

≤0.9 ps

≤1 ps

≤1 ps

≤1 ps

Nominal single-wave input optical power

≤0 dBm

 

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