Four-wave mixing crosstalk suppression based on the pairing combinations of differently linear-polarized optical signals

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Abstract

A new approach to suppressing the four-wave mixing (FWM) crosstalk by using the pairing combinations of differently linear-polarized optical signals was investigated. The simulation was conducted using a four-channel system, and the total data rate was 40 Gb/s. A comparative study on the suppression of FWM for existing and suggested techniques was conducted by varying the input power from 2 dBm to 14 dBm. The robustness of the proposed technique was examined with two types of optical fiber, namely, single-mode fiber (SMF) and dispersion-shifted fiber (DSF). The FWM power drastically reduced to less than −68 and −25 dBm at an input power of 14 dBm, when the polarization technique was conducted for SMF and DSF, respectively. With the conventional method, the FWM powers were, respectively, −56 and −20 dBm. The system performance greatly improved with the proposed polarization approach, where the bit error rates (BERs) at the first channel were 2.57×10-40 and 3.47×10-29 at received powers of −4.90 and −13.84 dBm for SMF and DSF, respectively.

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Abd, H., Din, N. M., Al-Mansoori, M. H., Abdullah, F., & Fadhil, H. A. (2014). Four-wave mixing crosstalk suppression based on the pairing combinations of differently linear-polarized optical signals. Scientific World Journal, 2014. https://doi.org/10.1155/2014/243795

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