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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 19, Iss. 8 — Aug. 1, 2001
  • pp: 1185–

Analysis of the Sign Reversal of the Photodetected Signal Response in a Multielectrode Semiconductor Optical Amplifier

Ammar Sharaiha and Mikael Guegan

Journal of Lightwave Technology, Vol. 19, Issue 8, pp. 1185- (2001)

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We present a theoretical analysis and experimental results for a two-electrode (200 m 300 m) 1.5-m semiconductor optical amplifier (SOA) used in photodetection. The experimental results show that at a particular operating point regarding current and optical input power, a sign reversal of the photodetected signal response, and a frequency bandwidth shape modification are obtained at the SOA front contact. These results are confirmed by simulation and explained by the developed theoretical photodetection expression obtained by small signal analysis from the rate equation.


Ammar Sharaiha and Mikael Guegan, "Analysis of the Sign Reversal of the Photodetected Signal Response in a Multielectrode Semiconductor Optical Amplifier," J. Lightwave Technol. 19, 1185- (2001)

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  1. T. Durhuus, B. Mikkelsen, C. Joergensen, S. L. Danielsen and K. E. Stubkjaer, "All-optical wavelength conversion by semiconductor optical amplifier", J. Lightwave Technol., vol. 14, pp. 942-954, June 1996.
  2. A. Sharaiha and M. Guegan, "Equivalent circuit model for multi-electrode semiconductor optical amplifiers and analysis of in-line photodetection in bi-directional transmission", J. Lightwave Technol., vol. 18, pp. 700-707, May 2000.
  3. M. Gustavsson, A. Karlson and L. Thylen, "Traveling wave semiconductor laser amplifier detectors", J. Lightwave Technol., vol. 8, pp. 610-617, Apr. 1990.
  4. T. Durhuus, B. Mikkelsen and K. E. Stubkjaer, "Detailled dynamic model for semiconductor optical amplifier and their crosstalk and intermodulation distortion", J. Lightwave Technol., vol. 10, pp. 1056-1064, Aug. 1992 .

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