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(a) The profile of the illumination fringe pattern of FP predicted by Eq. (1). (b) The profile of the illumination fringe pattern of GP predicted by Eq. (2). λ = 780nm, θf = 13.2 degree, θg = 27.2 degree, α = 2/π (c) The experimentally measured contrast of the coherent illumination fringe pattern and the incoherent detection fringe pattern of both FP and GP. Standard deviations are small compared to averages and not well visible in the plot.
