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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 20, Iss. 8 — Aug. 1, 2002
  • pp: 1317–

Statistical Analysis of Fiber-Optic CDMA Communication Systems-Part II: Incorporating Multiple Optical Amplifiers

Mohsen Razavi and Jawad A. Salehi

Journal of Lightwave Technology, Vol. 20, Issue 8, pp. 1317- (2002)

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In this paper, we study and elaborate on the architectural consideration of using multiple optical amplifiers in an all-optical fiber-optic code-division multiple-access (FO-CDMA) network. Our study and considerations are based on obtaining the statistical characteristic functions for photon-counts of a string of output pulses that constitutes the address code in a FO-CDMA network. Optical orthogonal codes (OOCs) with minimum auto-and cross correlation are employed as the address or signature sequence codes. Our analysis is based on chip-synchronous interference only, which provides an upper bound on the system performance. Shot noise, thermal noise, and extinction ratio are considered in this analysis. Bit error rate (BER) results are obtained using two methods,namely, saddle-point and Gaussian approximations. From our BER analysis, we develop some insight into the optimum distribution of optical amplifiers and their corresponding gain setting parameter. Moreover, the effects of source power, code weight, number of users, bit rate, and amplified spontaneous emission noise are investigated.


Mohsen Razavi and Jawad A. Salehi, "Statistical Analysis of Fiber-Optic CDMA Communication Systems-Part II: Incorporating Multiple Optical Amplifiers," J. Lightwave Technol. 20, 1317- (2002)

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  1. T. Ohtsuki and J. M. Kahn, "BER performance of turbo-coded PPM systems on optical fiber", J. Lightwave Technol., vol. 18, pp. 1776-1784, Dec. 2000.
  2. M. Razavi and J. A. Salehi, "Statistical analysis of fiber-optic CDMA communication systems-Part I: Device modeling", J. Lightwave Technol., vol. 20, pp. 1304-1316, Aug. 2002.
  3. E. Lichtman, "Performance limitations imposed on all-optical ultralong lightwave systems at the zero-dispersion wavelength", J. Lightwave Technol., vol. 13, pp. 898-905, May 1995.
  4. E. Lichtman, "Limitations imposed by polarization-dependent gain and loss on all-optical ultralong communication systems", J. Lightwave Technol., vol. 13, pp. 906-913, May 1995.

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