The dependence of the intensity PDF of a random beam propagating in the maritime atmosphere on source coherence

Scintillation reduction in pseudo Multi-Gaussian Schell Model beams in the maritime environment

“…1 In our experiment, we generated the pseudo MGSM beams with phase screen realizations on an SLM with resolution of 256 x 256 pixels. Reference [9] describes the general process that we used for generating the SLM phase screens. To summarize the method: a 256 x 256 random matrix with Gaussian statistics and zero mean is convolved with a Multi-Gaussian window function of the form of Eq.…”

Random sources for optical frames

“…where factor B is introduced to meet the first of conditions (11), n μ are of the form (13) or (21) starting summation, say, from the most inner frame, n a are the weights. Figure 7 shows some combinations of frames with different symmetries.…”

“…We note that for our modeling of the frames the specification of the source intensity distribution is not necessary, since the far-zone intensity distribution is independent from it. There are at least two general methods for practical realization of the random sources with prescribed correlations, one based on the field modulation by a spatial light modulator [11] and the other on the modulation of the intensity in the Fourier plane [12].…”

Scintillation reduction in multi-Gaussian Schell-model beams propagating in atmospheric turbulence

“…The ability of beams radiated by random sources to mitigate scintillations (intensity fluctuations) on their propagation in turbulent atmosphere has been known for several decades via theoretical results and computer simulations 1-5 and mesuarements [6][7] . In all the aforementioned references the tested beams are supposed to be produced by Gaussian Schellmodel sources, i.e.…”