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Alfaraj, H M and Qin, S (2011) Operationalising CMMI: integrating CMMI and CoBIT perspective. Journal of Engineering, Design and Technology, 9(03), 323-35.

Kaur, G, Singh, M L and Patterh, M S (2011) Analytical analysis of long-haul DWDM optical transmission systems in the presence of fiber nonlinearities. Journal of Engineering, Design and Technology, 9(03), 336-46.

  • Type: Journal Article
  • Keywords: emission; Stimulated Raman scattering; wavelengths
  • ISBN/ISSN: 1726-0531
  • URL: https://doi.org/10.1108/17260531111179942
  • Abstract:
    Purpose Fiber nonlinearities are anticipated to impose transmission limitations due to the enhanced total interaction length in long-haul dense wavelength division multiplexing (DWDM) optical transmission systems. The purpose of this paper is to analytically study the combined effect of stimulated Raman scattering (SRS) and four-wave mixing (FWM) in the presence of amplified spontaneous emission (ASE) noise generated by erbium-doped fiber amplifiers (EDFAs). Design/methodology/approach The paper presents analytical analysis of DWDM optical transmission systems in the presence of two significant fiber nonlinearities (SRS and FWM). Findings Simple expressions are derived to study the dependence of signal-to-noise ratio (SNR) on the amplifier spacing between two consecutive amplifiers. Originality/value The authors have analytically studied the combined effect of SRS and FWM in the presence of ASE noise generated by EDFAs. The novelty of the work is that it has considered all the three factors simultaneously and the expressions are derived for calculation of SNR.

Kumar, S, Khan, I A and Gandhi, O P (2011) A kaleidoscopic view of psychology in design for maintainability of mechanical systems: A review. Journal of Engineering, Design and Technology, 9(03), 347-70.

Mamphweli, N S and Meyer, E L (2011) Development of a cyclone with internal electric field. Journal of Engineering, Design and Technology, 9(03), 313-22.

Mlitwa, N B W and Birch, D (2011) The role of intrusion detection systems in electronic information security: From the activity theory perspective. Journal of Engineering, Design and Technology, 9(03), 296-312.

Othman, A and Abdellatif, M (2011) Partnership for integrating the corporate social responsibility of project stakeholders towards affordable housing development: A South African perspective. Journal of Engineering, Design and Technology, 9(03), 273-95.

Woldemichael, D E and Hashim, F M (2011) A framework for function-based conceptual design support system. Journal of Engineering, Design and Technology, 9(03), 250-72.