Coherent Wavelength Conversion in a Quantum Dot SOA

  title={Coherent Wavelength Conversion in a Quantum Dot SOA},
  author={G. Contestabile and Yuki Yoshida and Akihiro Maruta and Ken-ichi Kitayama},
  journal={IEEE Photonics Technology Letters},
We experimentally demonstrate wavelength conversion of coherent signals in an InAs/InGaAsP/InP columnar quantum dot semiconductor optical amplifier by using low power single pump four-wave-mixing. We report highly efficient conversion, i.e., 30 nm conversion span with a conversion efficiency larger than -10 dB and output optical signal to noise ratio larger than 20 dB. Transparency to coherent modulation formats is demonstrated in a 25 nm conversion of 10 GBaud quadrature phase shift keying… CONTINUE READING
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