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. We propose a bidirectional transmission system based on stimulated Brillouin scattering effect and injection-locked distributed feedback laser to achieve an optical single-sideband modulation for downlink transmission. We reuse the transmitted light through phase modulation for uplink transmission to avoid interference of both signals in a bidirectional transport. After a 25-km single-mode fiber transmission is completed, a sideband power ratio of >15  dB is observed in the downlink transmission, and the power penalty of the system is <1  dB. In our proposed bidirectional transmission system, the performances of bit error rate analysis are good.

optical engineering

Bidirectional optical single-sideband modulation and phase remodulation radio-on-fiber transport systems with fiber nonlinearity and injection-locked laser technology