Suppression of four-wave mixing in a 22 × 10 Gbps dense wavelength division multiplexed system by linearly chirped fiber Bragg gratings

  • Chiranjit GhoshEmail author
  • Vishnu Priye


A scheme comprising two linearly chirped fiber Bragg gratings (LCFBGs) is proposed to suppress four-wave mixing (FWM) effects in a 22×10 Gbps dense wavelength division multiplexed (DWDM) system employing dispersion shifted fiber with 0.2 nm channel spacing. The FWM reduction in our proposed scheme has been studied by varying the input signal power per channel from − 2 to + 10 dBm. The parameters of LCFBGs are optimized to obtain a maximum quality factor for all 22 channels. The proposed method is effective even at high input power (10 dBm) and provides a simple, cost effective way to improve the transmission performance in DWDM system.


Dispersion Chirped fiber Bragg gratings Dense wavelength division multiplexing (DWDM) Channel spacing Four wave mixing (FWM) 



This work was supported by the Department of Electronics and Information Technology (DeitY), Government of India under the Visvesvaraya PhD scheme for Electronics and IT.

Compliance with ethical standards

Conflict of interest

The authors have no conflicts of interest to declare.


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Authors and Affiliations

  1. 1.Department of Electronics EngineeringIndian Institute of Technology (Indian School of Mines)DhanbadIndia

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