Fig. 1: Setup and calibrations.
a Unknown multispectral wavefronts are imaged onto the input facet of a multicore fiber. A plane at a distance d from the output facet is imaged onto a camera using a ×10, 0.3NA microscope objective and a f = 300 mm tube lens. b A multiplexed image (i) consists of a sum of locally translated reference intensity patterns (ii) according to the model (iii). The set of reference patterns (ii) are sequentially measured under monochromatic and plane wave illumination. The wavefronts (iv) and the intensities are then reconstructed by solving the inverse problem. c Angular correlation of the wavefront sensor measured at four wavelengths. d Spectral correlation width of the wavefront sensor as a function of the wavelength.
