Article

Technical Physics Letters

, Volume 30, Issue 2, pp 120-122

Electrically controlled integrated optical filter

  • M. P. PetrovAffiliated withIoffe Physicotechnical Institute, Russian Academy of Sciences
  • , A. V. ChamraiAffiliated withIoffe Physicotechnical Institute, Russian Academy of Sciences
  • , A. S. KozlovAffiliated withIoffe Physicotechnical Institute, Russian Academy of Sciences
  • , I. V. Il’ichevAffiliated withIoffe Physicotechnical Institute, Russian Academy of Sciences

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Abstract

The possibility of electric control over the spectral transfer function of an integrated optical filter comprising a reflection Bragg grating in a photorefractive waveguide is demonstrated for the first time. The filter has a spectral selectivity of 0.15 nm, ensures continuous tuning within ∼0.1 nm, and can be electrically switched on and off. The proposed method of control is effective and has good prospects for practical applications.