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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 27, Iss. 14 — Jul. 15, 2009
  • pp: 2707–2716

A Comprehensive Study on the Dynamic Range of Wavelength Exchange and Its Impact on Exchanged Signal Performance

Mengzhe Shen, Henry King Yin Cheung, Rebecca Wai Lam Fung, and Kenneth Kin-Yip Wong

Journal of Lightwave Technology, Vol. 27, Issue 14, pp. 2707-2716 (2009)


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Abstract

Effects of the incomplete signal exchange on the dynamic range performance of type II wavelength exchange (WE II, i.e. both pumps are in anomalous dispersion region) are investigated analytically and experimentally. The dynamic range here is defined as the tolerable operational range of the signal power to maintain a nearly complete WE performance. We studied the case of equal signal powers (balanced signal powers) as well as the case of unequal signal powers (imbalanced signal powers). It is demonstrated that the beating between exchanged signal and residual one and the extinction ratio degradation due to the existence of residual power at original channel is the major source of the signal quality degradation after WE II. The experimental results demonstrated dynamic range $\sim$17 dB with bit-error rate (BER) $<10^{-9}$ could be maintained with power penalty of $<$2 dB in the case of balanced signal powers. In the case of imbalanced signal powers, the dynamic range was $>$8 dB with the power penalty incurred of $\sim$2 dB in the worst case.

© 2009 IEEE

Citation
Mengzhe Shen, Henry King Yin Cheung, Rebecca Wai Lam Fung, and Kenneth Kin-Yip Wong, "A Comprehensive Study on the Dynamic Range of Wavelength Exchange and Its Impact on Exchanged Signal Performance," J. Lightwave Technol. 27, 2707-2716 (2009)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-14-2707

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