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High speed reconfigurable logic gates based on single semiconductor optical amplifier

Dong Jian-Ji Zhang Xin-Liang Wang Yang Huang De-Xiu

High speed reconfigurable logic gates based on single semiconductor optical amplifier

Dong Jian-Ji, Zhang Xin-Liang, Wang Yang, Huang De-Xiu
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  • Abstract views:  3944
  • PDF Downloads:  1040
  • Cited By: 0
Publishing process
  • Received Date:  13 June 2007
  • Accepted Date:  25 September 2007
  • Published Online:  05 February 2008

High speed reconfigurable logic gates based on single semiconductor optical amplifier

  • 1. 华中科技大学光电子科学与工程学院,武汉 430074

Abstract: The nonlinearities of a semiconductor optical amplifier (SOA) are exploited to realize various all-optical signal processing at ultrahigh speed. We demonstrate reconfigurable logic gates with XNOR, AND, NOR, OR, and NOT functions based on various nonlinearities of single SOA, including four-wave mixing, cross gain modulation and transient cross phase modulation. Since the modulation speed of the SOA is limited by the recovery time of carrier density, a detuning optical bandpass filter with 0.32nm-bandwidth follows the SOA to enhance the modulation speed. Multi-logic gates at 40Gbit/s are obtained with single SOA.

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