Fast scanning acoustooptic spectrum analyzer with high dynamic range.
An acoustooptic spectrum analyzer is described that is based on a new method of measuring spatial light intensity distribution in the Fourier plane. Instead of a detector array, an acoustooptic Bragg cell combined with a fast high dynamic range detector is used. With special driving signals, a time-bandwidth product of >1000, a speed of <50 micros/spectrum, and an increased dynamic range of >40 dB can be achieved.
Jakab
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Richter
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