Measurement of non-stationary signals using an acousto-optic spectrometer

S. V. Kulakov; D A Denisenkov; V. V. Kludzin

doi:10.1117/12.825157

21 August 2009 Measurement of non-stationary signals using an acousto-optic spectrometer

S. V. Kulakov, D A Denisenkov, V. V. Kludzin

Proceedings Volume 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III; 74200N (2009) https://doi.org/10.1117/12.825157
Event: SPIE Photonic Devices + Applications, 2009, San Diego, California, United States

Abstract

This paper discusses measurements of non-stationary optical signals using an acousto-optic spectrometer. Any spectral measurements should take non-stationary forms of optical signals into account. The paper presents the results of experiments where a non-stationary optical beam from an electric spark was used. An acousto-optic tunable filter based on off-axis diffraction in the TeO₂ crystal was used. The total analysis time was approximately 1 sec for an optical signal cycle of 100 Hz. The spectrum had a "black body" shape with distinguished fragments at 572 nm and 471 nm. The paper also proposes a method to increase the accuracy of measurement.

Citation Download Citation

S. V. Kulakov, D A Denisenkov, and V. V. Kludzin "Measurement of non-stationary signals using an acousto-optic spectrometer", Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 74200N (21 August 2009); https://doi.org/10.1117/12.825157

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KEYWORDS

Acousto-optics

Sensors

Signal processing

Optical filters

Spectroscopy

Acoustics

Crystals

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