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Telecommunications and Radio Engineering

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ISSN Druckformat: 0040-2508

ISSN Online: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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SIMULATIVE INVESTIGATION OF WDM ROF SYSTEMS INCLUDING THE EFFECT OF THE RAMAN CROSSTALK USING DIFFERENT MODULATORS

Volumen 75, Ausgabe 14, 2016, pp. 1243-1254
DOI: 10.1615/TelecomRadEng.v75.i14.20
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ABSTRAKT

The WDM system has facilitated communication links to realize large bandwidth of optical fiber making it the preference for future communication networks. But WDM system comes with a liability in the form of crosstalk due to non linear effects. The Raman effect induced crosstalk is one of the major mortifying factors. This paper presents a simulative investigation and comparison between two WDM systems based on Dual Electrode Mach Zehender Modulator (DE-MZM) and Optical Phase Modulator (OPM) including the effects of the Raman crosstalk. Two 16 channels WDM systems are designed using DE-MZM and OPM respectively. The models are analyzed for various values of the Raman Gain coefficient (Fr) ranging from 0.2 to 0.8 and transmission distance varied from 20 to 50 km. The energy transfer takes place from higher to lower frequency channels as the signal is transmitted along the fiber. It has been observed that based on OPM system energy transfer is lesser in comparison to the DE-MZM based system. The energy transfer is found to be 2 and 1 dB lesser in OPM based system when Fr is kept at 0.2 and 0.8 at transmission distance of 20 km. Transmission distance also influences Raman effect induced energy distribution among channels.

REFERENZIERT VON
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  2. Kumar Suresh, Sharma Deepak, Payal , Singh Rajbir, Performance Analysis of Radio Over Fiber Link Using MZM External Modulator, in First International Conference on Sustainable Technologies for Computational Intelligence, 1045, 2020. Crossref

  3. Garg Deepak, Nain Abhimanyu, Analysis and mitigation of photodiode non-linearity under the influence of optical modulator in multitone RoF link, Journal of Optics, 51, 2, 2022. Crossref

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