Erasing of an optically induced grating in a semi-insulating multiple quantum well waveguide


  • Ewa Weinert-Rączka West Pomeranian University of Technology in Szczecin
  • Marek Wichtowski West Pomeranian University of Technology in Szczecin



An interaction between optical signal guided in a photorefractive multiple quantum well planar waveguide and two external waves is considered. The external waves create a refractive index grating in the waveguide core which can be applied for frequency selective switching of guided signals. The influence of free carriers generated by the signal wave on the stability of photorefractive grating is analyzed.

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How to Cite

E. Weinert-Rączka and M. Wichtowski, “Erasing of an optically induced grating in a semi-insulating multiple quantum well waveguide”, Photonics Lett. Pol., vol. 4, no. 1, pp. pp. 23–25, Mar. 2012.