Abstract

The effect of alternate polarization (alP) has been investigated for 400 × 200 Gbps super dense wavelength division multiplexing (SD-WDM) system using RAMAN-EDFA-RAMAN hybrid optical amplifier (HOA). Further evaluation has carried out for the characteristics of bit error rate (BER) and quality factor (Q-factor) for enhance long haul optical communication. Remarkable performances have recorded by al-PNRZ modulation technique with acceptable outcome in terms of quality factor (Q-factor) 20.5 dB and bit error rate (BER) of 10–40 with 100 GHz channel spacing.

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