Binary-to-Quaternary ASK Encoding in the Optical Domain With Semiconductor Optical Amplifiers

@article{Porzi2009BinarytoQuaternaryAE,
  title={Binary-to-Quaternary ASK Encoding in the Optical Domain With Semiconductor Optical Amplifiers},
  author={Claudio Porzi and A. T. Nguyen and Luca Pot{\`i} and Antonella Bogoni},
  journal={IEEE Photonics Technology Letters},
  year={2009},
  volume={21},
  pages={654-656}
}
Quaternary amplitude-shift-keying signal is all-optically generated from binary signals exploiting gain compression in two semiconductor optical amplifiers. The scheme is suitable for phase-control-free all-optical digital-to-analog conversion. Only two semiconductor amplifiers, a single optical filter, and no assist probe light are required for 2-bit operation. In addition, the input wavelength is preserved at the output of the device. Dynamic operation is experimentally demonstrated. The… CONTINUE READING

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