Wei WANG, Fan LI, Zhao-hui LI. SSBI Elimination Technology in Single Side Band Direct Detection System[J]. Study On Optical Communications, 2023, 49(5): 5
- Study On Optical Communications
- Vol. 49, Issue 5, 5 (2023)
Fig. 1. Schematic diagram of the optical carrier-assisted SSB signal generation
Fig. 2. Schematic diagram of time-domain iteration based SSB signal reconstruction
Fig. 3. Experimental setup and DSP block diagram of time-domain iteration based SSB signal reconstruction
Fig. 4. Spectrum of the input signal and output signal of FIR filter under different iterations
Fig. 5. BER performance comparison in OBTB transmission
Fig. 6. Effect of iteration times and filter tap length on BER performance
Fig. 7. BER performance comparison of two algorithms with different launch power
Fig. 8. DSP block of time-domain iterative method and complexity comparison
Fig. 9. Schematic diagram of SSB signal generation based on DDMZM
Fig. 10. Schematic diagram of Cartesian-to-Polar conversion
Fig. 11. SSB modulation direct detection system based on DDMZM
Fig. 12. Conventional DDMZM scheme in OBTB transmission
Fig. 13. Conventional DDMZM scheme over 80 km transmission
Fig. 14. Transmission performance evaluation of CPC scheme
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Table 1. Comparison of hardware complexity
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