The influence of pulse duration and phase instabilities on the quality of stroboscopic holograms

The applying of stroboscopic methods in optical holographic measurements is limited due to the influence of quality of holographic arrangement on the accuracy of results. Parasitical interferometric fringes as a result of pulse duration or phase synchronization instability may be presented on a hologram and, such fringes have no relationship to real displacement or deformation. It creates a lot of troubles for researchers and, finally leads to refuse of using the stroboscopic technique. However, the troubles may be successfully overcome as if we analyze all kinds of influences on the quality of stroboscopic interferogram. This paper reports about the influence of pulse duration and phase instability. The presented results allow to realize correct stroboscopic holographic measurement. The problem of quality of applied arrangement has been discussed as well.