Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating

Figure 3

The detected light intensity distribution and normalized spectrum diagram. (a) The detected light intensity distribution of the original DVG. (b) The corresponding normalized spectrum diagram. (c) The detected light intensity distribution of the EDVG. (d) The corresponding normalized spectrum diagram.

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(b)

(c)

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