Author Affiliations
Shanghai Institute for Advanced Communication and Data Science, Key Laboratory for Information Science of Electromagnetic Waves, Fudan University, Shanghai 200433, Chinashow less
Fig. 1. Schematic diagram of the proposed scheme. LD, laser diode; PM-OC, polarization maintaining optical coupler; ATT, attenuator; PS, phase shifter; PR, polarization rotator; PBC, polarization beam combiner; MZM, Mach–Zehnder modulator; PD, photodiode.
Fig. 2. Experimental setup of the proposed scheme. DFB-LD, distributed feedback laser diode; IM, intensity modulator; EA, electrical amplifier; PM-OC, polarization maintaining optical coupler; ATT, attenuator; PS, phase shifter; PR, polarization rotator; PBC, polarization beam combiner; EDFA, erbium-doped fiber amplifier; PD, photodiode; HA, antenna; OSC, oscilloscope.
Fig. 3. Received electric mm-wave signal spectra and constellation diagrams for the BTB and wireless transmission: (a) BTB transmission, (b) 1 m wireless transmission. (a1), (b1) Received mm-wave signal spectra, (a2), (b2) before orthogonalization, (a3), (b3) after orthogonalization, (a4), (b4) after CMA, (a5), (b5) after FOE, and (a6), (b6) after CPE.
Fig. 4. BER versus the optical power into the PD for BTB and wireless transmission.