The emergence of DWDM is one of the most innovative and important phenomena in the development of fibre optic communication technology. Here is a DWDM solution want to share with you. HTF support customized DWDM solution design and products provide. Please tell us your request, we will provide professional service for you.

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Challenge

1）Need to consider Cost

2）Need to consider Equipment compatibility

3）Network management simplified were also needed to take into consideration.

HTF 100G DWDM Network Solution

HTF H6000 WDM optical transmission platform was deployed in the data center of two sites.

For future expansion, 40-channel mux demux was selected

Use 100G coherent module, no need DCM

The transmission line loss need to be balanced, so the PA 16/G30 and BA20/G12 were used to ensure a stable transmission performance.

1) Single Channel Fiber power calculation:

A→B Line loss ：120km/36dBm

0dbm (From CFP-DCO module ) – 5dBm (Mux/Demux) +9dBm (BA20/G12)-36dBm (120km cable loss) + 30dBm (PA16/G30) – 5dBm (Mux/Demux) =-7dBm (at receiver site)

Rx Sensitivity -19dBm < -7dBm < Rx over load +3dBm， In acceptable receive sensitivity range

2) Dispersion calculation:

100G CFP-DCO reach beyond 1200km over SMF without inline DCM

3) OSNR calculation:

58+4-36-6=20dB >15 dB (100G CFP-DCO  OSNR tolerance 15dB)  Meet design needs.