Fig. 2: Modal decomposition with relative phase resolution.
From: Universal photonic processor for spatial mode decomposition
Each row corresponds to one input. The first column shows the theoretical intensity profile generated by the SLM, overlaid with points representing the pixel positions, where color indicates phase and diameter represents relative amplitude. The subsequent columns show the measured phase and amplitude, the modal decomposition, and the final reconstructed beam. a–d A HG0,1 input mode. The beam is decomposed in the LG basis, with LG0,1 and LG0,−1 contributions of equal amplitude and phase. e–h A HG1,0 input mode with mixture of LG0,1 and LG0,−1 with π phase difference and equal amplitude.
