Abstract
The pulses of a synchronously pumped dye laser (SPDL) enter a two-beam interferometer. A photoconductive detector (PCD) was illuminated with the interference pattern produced. It is shown by beating between two optical frequencies and measurement of fringe visibility that the PCD-current is sensitive to the interference visibility. The supplement of a second harmonic (SH) scanning autocorrelator with low scanning range by a PCD is proposed in order to get an improved distinction between single and double pulse regime.
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