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August 12, 2014 at 8:08 am
#13119
Hi Jaffar Emad Kadum,
I have studied in many research papers that the power penalty due to 20 km optical fiber is approximately ranges from 0.5dB to 1.5 dB.
but theoretically if we calculate the power losses in 20 km fiber is 4 dB (0.2dB/km*20 km) . then how it is possible ???