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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 30, Iss. 15 — Aug. 1, 2012
  • pp: 2447–2454

Analytical Expressions for Nonlinear Transmission Performance of Coherent Optical OFDM Systems With Frequency Guard Band

Guanjun Gao, Xi Chen, and William Shieh

Journal of Lightwave Technology, Vol. 30, Issue 15, pp. 2447-2454 (2012)

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Closed-form expressions for nonlinear transmission performance of coherent optical OFDM systems (CO-OFDM) with frequency guard band are derived. The analytical expressions have been substantiated by numerical simulations using split-step method for various frequency spacings and fiber dispersion maps. The analytical solution shows good estimation accuracy, and the average absolute difference of Q factor between analytical results and numerical simulations are below 0.3 dB for the three typical systems simulated. Using this expression, the dependence of system performance for CO-OFDM on the frequency guard band spacing and fiber dispersion is also investigated analytically to provide insights for system design.

© 2012 IEEE

Guanjun Gao, Xi Chen, and William Shieh, "Analytical Expressions for Nonlinear Transmission Performance of Coherent Optical OFDM Systems With Frequency Guard Band," J. Lightwave Technol. 30, 2447-2454 (2012)

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