Fig. 1. Fundamental MDM system. The illustration shows the rotation of a paddle of the FMPC.

Fig. 2. Outputs of the FMPC and MSPL demultiplexer dependent on the input linear polarization angle α. (a), (c), and (e) with θ_A; (b), (d), and (f) with θ_B.

Fig. 3. Experimental setup of PDL measurement for the MDM system with the homemade FMPC.

Fig. 4. LP₁₁ modal pattern output from FMPC1 and power transmission output from MSPL demultiplexer dependent on the input linear polarization angle α. (a) and (c) with θ₁; (b) and (d) with θ₂.

Fig. 5. Power transmission of the x- and y-polarization components and polarization power difference ΔP_xy versus the input linear polarization angle α. (a) With θ_A; (b) with θ_B.

Fig. 6. Power transmission and polarization power difference ΔP_xy versus β for Port B of the MSPL demultiplexer.

Fig. 7. Experimental results for DP light. (a) Modal patterns output from FMPC1; (b) polarization power difference ΔP_xy versus relative orientation angle β.