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Wavelength characterization of an acousto-optic notch filter for unpolarized near-infrared light

Abstract : A cascaded system of two acousto-optical cells is proposed and experimentally demonstrated for optical notch rejection filtering in the spectral range from 1400 nm to 1600 nm. Two similar paratellurite acousto-optical devices for unpolarized light are used in a free-space gap of a fiber line. Compensation for birefringence in anisotropic paratellurite devices provides a diffraction regime that is insensitive to polarization of light. High extinction ratios up to 40 dB are measured.
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https://hal-uphf.archives-ouvertes.fr/hal-03549268
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Submitted on : Monday, January 31, 2022 - 1:10:17 PM
Last modification on : Friday, April 15, 2022 - 2:40:01 PM

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  • HAL Id : hal-03549268, version 1

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Jean-Claude Kastelik, Justine Champagne, Samuel Dupont, Konstantin B. Yushkov. Wavelength characterization of an acousto-optic notch filter for unpolarized near-infrared light. 13th School on Acousto-Optics and Applications, Jun 2017, Moscow, Russia. pp.C36-C41. ⟨hal-03549268⟩

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