Yamei Zhang, Fangzheng Zhang, and Shilong Pan. Optical single sideband polarization modulation for radio-over-fiber system and microwave photonic signal processing[J]. Photonics Research, 2014, 2(4): B80
- Photonics Research
- Vol. 2, Issue 4, B80 (2014)
Fig. 1. Schematic diagram of the proposed configuration to implement OSSB polarization modulation. OSA, optical spectrum analyzer.
Fig. 2. (a) Optical spectrum of the generated OSSB polarization-modulated signal after PolM2 and (b) sideband suppression ratios of the OSSB modulated signals when the frequency of the RF signal is varied from 12.5 to 35 GHz.
Fig. 3. Sideband suppression ratios of the OSSB polarization-modulated signal when γ 1 = 0.4488 γ 2
Fig. 4. Sideband suppression ratios of the OSSB modulated signals when the phase difference between the two electrical drive signals changes from 0° to 180°.
Fig. 5. Electrical spectra (a) when the OSSB signal is directed straight to the PD and (b) when a polarizer is inserted before the PD.
Fig. 6. Optical spectra of the OSSB polarization-modulated signals at different wavelengths.
Fig. 7. Electrical spectra and constellation diagrams of (a), (b) input and output 10 GHz microwave signal with 50 Mbaud 16 QAM baseband data after (c), (d) 25 km and (e), (f) 50 km fiber transmission.
Fig. 8. Schematic diagram of the microwave photonic phase shifter based on the proposed OSSB PolM. Pol, polarizer.
Fig. 9. Phase responses of the microwave photonic phase shifter based on the proposed OSSB PolM when the frequency changes.
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