Fig. 6: Demonstration of the CVB mode multiplexer/demultiplexer is compatible with wavelength multiplexing.
From: Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control
a Measured BERs of two CVB modes at four wavelengths. b Constellations of QPSK signals carried by CVB modes (m = −2, m = +1) at different wavelengths (1551, 1553, 1554, and 1556 nm
