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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 23, Iss. 6 — Jun. 1, 2005
  • pp: 2001–

On the Performance of the Electrical Equalization Technique in MMF Links for 10-Gigabit Ethernet

C. Xia, M. Ajgaonkar, and W. Rosenkranz

Journal of Lightwave Technology, Vol. 23, Issue 6, pp. 2001- (2005)


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Abstract

In this paper, the electrical equalization technique utilized in multimode fiber (MMF) links for 10-Gigabit Ethernet is reported. This paper presents and compares three kinds of equalizers: linear equalizer, decision feedback equalizer (DFE), and a nonlinear finite-impulse-response DFE (NL-FIR-DFE) based on the analysis of nonlinear operations of direct modulation and detection in MMF links. Computer simulations reveal that NL-FIR-DFE exhibits superior performance in comparison with normal DFE. The equalization performance for an MMF channel with bandwidth 500 MHz-km as well as 160 MHz-km is demonstrated. It is demonstrated that with direct modulation of cost-effective vertical-cavity surface-emitting laser (VCSEL) or Fabry-Pérot laser, the transmission distance for installed MMF with a bandwidth of 500 MHz-km at 10 Gb/s can be extended to 300 m with an appropriate offset restricted mode launch condition by utilizing normal DFE and to more than 650 m for NL-FIR-DFE. Moreover, it is shown that the transmission distance for an MMF with a bandwidth of 160 MHz-km can reach 300 m with more than seven times bandwidth improvement by using NL-FIR-DFE.

© 2005 IEEE

Citation
C. Xia, M. Ajgaonkar, and W. Rosenkranz, "On the Performance of the Electrical Equalization Technique in MMF Links for 10-Gigabit Ethernet," J. Lightwave Technol. 23, 2001- (2005)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-23-6-2001

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