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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 22,
  • Issue 5,
  • pp. 1303-
  • (2004)

Improving the All-Optical Response of SOAs Using a Modulated Holding Signal

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Abstract

A method for increasing the all-optical modulation bandwidth of semiconductor optical amplifiers (SOAs) by use of a cross-gain-modulated (XGM) holding signal is suggested and analyzed. The bandwidth improvement is numerically demonstrated by studying wavelength conversion in an SOA-based Mach-Zehnder interferometer (MZI) at 160 and 40 Gb/s. The new scheme is predicted to improve the extinction ratio and the minimum mark output power, as well as to reduce the amplitude jitter of the wavelength converted signal.

© 2004 IEEE

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