, Volume 30, Issue 2, pp 120-122

Electrically controlled integrated optical filter

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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.

Translated from Pis’ma v Zhurnal Tekhnichesko \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l} \) Fiziki, Vol. 30, No. 3, 2004, pp. 75–81.
Original Russian Text Copyright © 2004 by Petrov, Chamrai, Kozlov, Il’ichev.