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Proceedings Paper

Acousto-optical tunable filter for a swept light source with variable transmission function
Author(s): Alexander S. Machikhin; Demid D. Khokhlov; Vitold E. Pozhar; Alexey B. Kozlov; Vladislav I. Batshev; Alexey V. Gorevoy
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Paper Abstract

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.

Paper Details

Date Published: 5 November 2018
PDF: 6 pages
Proc. SPIE 10815, Optical Design and Testing VIII, 108150L (5 November 2018); doi: 10.1117/12.2502756
Show Author Affiliations
Alexander S. Machikhin, National Research Univ. (Russian Federation)
Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Demid D. Khokhlov, National Research Univ. (Russian Federation)
Scientific and Technological Ctr. for Unique Instrumentation (Russian Federation)
Vitold E. Pozhar, National Research Univ. (Russian Federation)
Scientific and Technological Ctr. for Unique Instrumentation (Russian Federation)
Bauman Moscow State Technical Univ. (Russian Federation)
Alexey B. Kozlov, National Research Univ. (Russian Federation)
POLYUS Research Institute of M.F. (Russian Federation)
Vladislav I. Batshev, National Research Univ. (Russian Federation)
Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Bauman Moscow State Technical Univ. (Russian Federation)
Alexey V. Gorevoy, National Research Univ. (Russian Federation)
Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Bauman Moscow State Technical Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10815:
Optical Design and Testing VIII
Yongtian Wang; Tina E. Kidger; Kimio Tatsuno, Editor(s)

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