Question

The following parameters were chosen for a long haul single mode optical fiber system operating at 1.3µm. Calculate maximum possible link length without repeaters
1.Mean power launched from laser = -5 dBm
2.Cable fiber loss = 0.4 dB/km
3.Connector loss at transmitter and receiver = 2 dB
4.Mean power at receiver = -55 dBm
6.Required safety margin = +6 dB

Answer 1

Distance of single mode fiber can reach 40km at the speed of 40gigabit Ethernet, and it will be 10km with the speed of 10gigabit Ethernet. Thus, try to buy fiber cable of suitable length for your project based on your network speed and some other actual situations.

Answer 2

Answer:

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