Home Forums FIBER How can you calculate Q factor in order to verify the simulated Q factor result

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      Jerrin Mohan
      Participant

      Hi

      How do I calculate the Max Q factor on paper for a given system in order to verify if my simulated Max Q factor shown on my eye diagram in optisystem is correct and corresponds with my calculated Q?

      Here are the parameters for the given system:
      32 x 5Gb/s DWDM system
      Fiber span includes a 100km (NZDSF), 2.7km (DCF), EDFA (Gain = 21 dB & Noise Figure = 6dB), 6 connectors in total (0.75 dB insertion loss each)
      dispersion of NZDSF: 4 ps/nm.km
      dispersion of DCF: -147 ps/nm.km
      LOOP CONTROL = 1
      Transmission Type:DML
      TX Power:5dBm
      Central Wavelength: 1550nm
      Modulation Type:NRZ
      Loss of Multiplexer:5dB
      Loss of Demultiplexer: 5dB
      Frequency Spacing:100GHz
      Receiver Sensitivity: -18 dBm
      Thermal noise: 1e-022
      Insertion Loss of PIN: 3dB
      Cut off Frequency = 0.75 X bit rate = 0.75 x 5 Gb/s = 3.75 GHz

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