| Photorefractive Multiple Quantum Well Waveguide as a Bragg Reflector |
| M. Wichtowski and E. Weinert-Rączka Institute of Electronics, Telecommunication and Informatics, Electrical Engineering Department, Technical University of Szczecin, al. Piastów 17, 70-310 Szczecin, Poland |
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| An interaction between the signal wave propagating in a planar waveguide and a photorefractive grating is analysed. The waveguide contains an AlGaAs/GaAs multiple quantum well guiding layer biased with an external electric field applied along the wells plane. The grating is formed by two external beams interfering in the multiple quantum well layer. The dependence of the steady-state grating properties on the external waves parameters and applied electric field intensity is presented. Possible application of the grating as an optically controlled Bragg reflector with memory is analysed. |
| DOI: 10.12693/APhysPolA.103.239 PACS numbers: 42.65.--k, 42.65.Pc |