Reduction of four wave mixing efficiency in DWDM systems using optimal PMD

Lawan, S. H.; Mohammad, Abu Bakar

doi:10.1007/s11082-018-1370-y

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…In addition, nonlinear effects such as inter-and intra-channel Four Wave Mixing (FWM) are considered a major source of impairments in high data rate and high-capacity optical networks [12,13]. In fact, inter-and intra-channel FWM effects have been widely investigated in pure WDM systems and are considered one of the foremost application issues in optical fiber networks [14][15][16][17][18]. On the other hand, the effects of inter-and intrachannel FWM in the hybrid optical CDMA/DWDM system have not been addressed.…”

Section: Introductionmentioning

confidence: 99%

“…By extending the work in [18], the target of this paper is to examine the impact of different types of modulation formats (namely return to zero (RZ), carrier suppressed RZ (CSRZ) and the modified duobinary RZ (MD-RZ) formats-based OOK signaling) on the bit error rate (BER) as a key figure of merit performance of the hybrid optical CDMA/DWDM system. The influence of inter-and intra-channel FWM, ISI, and MAI have been considered.…”

Section: Introductionmentioning

confidence: 99%

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Performance Comparison of Different Modulation Formats for a 40 Gbps Hybrid Optical CDMA/DWDM System against ISI and FWM

2022

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This paper carries out a numerical simulation investigating three different modulation formats: carrier suppressed return to zero (CSRZ), modified duobinary return to zero (MDRZ) and return to zero (RZ). The purpose of this investigation is to find the optimum modulation format for the hybrid optical code division multiple accesses–dense wavelength division multiplexing (optical CDMA/DWDM) system with the implementation of an electro-optic phase modulator (EOPM) at a data rate of 40 Gbps per channel, with a transmitted power of 22 dBm and transmission distance of 105.075 km. The results revealed that CSRZ was superior to MDRZ and RZ and was more tolerant to optical fiber nonlinearity. Furthermore, unlike the DWDM systems, the performance of the proposed hybrid system based RZ format was better than the performance of MDRZ. Hence, the CSRZ modulation format is the best candidate for the optical CDMA/DWDM with EOPM module due to its high performance.

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