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5 November 2018 Acousto-optical tunable filter for a swept light source with variable transmission function
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Spectrally tunable illumination is widely used for colorimetry, spectroscopy, spectral-domain optical coherence tomography and other applications. Most of the swept light sources suffer either from a limited number of spectral channels or from a spatial noise and speckles. In this paper, we discuss an approach based on acousto-optic filtration of wide-band illumination. We show experimentally that acousto-optical tunable filter (AOTF) provides a unique collection of features: arbitrary spectral tuning, multi-bandpass mode and acoustic frequency modulation. It allows assigning a number, positions and width of the spectral channels. Results of multiple experiments show that the proposed technique may become the basis of the swept light sources.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander S. Machikhin, Demid D. Khokhlov, Vitold E. Pozhar, Alexey B. Kozlov, Vladislav I. Batshev, and Alexey V. Gorevoy "Acousto-optical tunable filter for a swept light source with variable transmission function", Proc. SPIE 10815, Optical Design and Testing VIII, 108150L (5 November 2018);

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