Effect of feedback loop on the resolution of acousto-optic spectrometer

Resumo

An acousto-optic spectrometer based on a collinear acousto-optic cell with feedback loop has been theoretically and experimentally investigated. It is shown that the introduction of optoelectronic feedback affects to a great extent the characteristics of collinear acousto-optic interaction and makes it possible to increase significantly the accuracy of determining the wavelength of incident optical signal.