Fig. 2: Modal fidelity measurement. | Nature Communications

Fig. 2: Modal fidelity measurement.

From: High-fidelity spatial mode transmission through a 1-km-long multimode fiber via vectorial time reversal

Fig. 2

a, b The measured amplitude, phase, and polarization of the scrambled probe beams and unscrambled signal beams for horizontally polarized LG(3,2) and HG(4,4) mode respectively. c, d The unnormalized modal fidelity for unscrambled Laguerre–Gauss modes and Hermite–Gauss modes. A single index is used to denote the two-mode indices for simplicity (see Supplementary Note 3), and the light and dark blue bands denote the odd and even mode group number respectively.

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