Abstract
In this paper, the effect of nonlinearity has been investigated with different techniques such as non-return-to-zero (NRZ), return-to-zero (RZ), duo-binary return-to-zero (DRZ), and modified duo-binary return-to-zero (MDRZ) modulations. We have explored the fiber nonlinearities by taking dispersion of single-mode optical fiber at 2.5 Gbps communication system with various transmission lengths; i.e., 72–132 km is evaluated with respect to the nonlinearity in fibers. The evaluation is done in terms of Q factor and BER with the 0 dBm input launched power. Along with this pre-compensation, post-compensation and symmetrical compensation techniques are also applied, and it is observed that the Q factor in symmetrical compensation is higher in comparison to the pre-compensation and post-compensation techniques. Therefore, it is examined that nonlinearity effects are less effective in symmetrical compensation instead of pre-compensation and post-compensation.
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Kouser, R., Singh, S. (2019). Analysis and Reduction of Fiber Non-linearity in Optical Communication System. In: Mishra, S., Sood, Y., Tomar, A. (eds) Applications of Computing, Automation and Wireless Systems in Electrical Engineering. Lecture Notes in Electrical Engineering, vol 553. Springer, Singapore. https://doi.org/10.1007/978-981-13-6772-4_86
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DOI: https://doi.org/10.1007/978-981-13-6772-4_86
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