Increase signal-to-noise ratio in acousto-optic spectrum analyzer with use astigmatic optics

Telecommunication Systems and Computer Networks

Shows the calculation of signal to noise ratio in acoustooptic spectrum analyzer with use astigmatic optical system to match the size of optical and ultrasonic beams. Improved method for calculating noise in optical systems with two-dimensional signals that are not functions with separable variables. The possibility of optimizing scheme of the spectrum analyzer to increase signal to noise ratio.