Hailong LIAO, Guodong WANG, Hua MIAO, Guoping ZHANG. An Ultra-Low-Power Optical Transmitter for Short-Reach Optical Communication[J]. Study On Optical Communications, 2024, 50(3): 23001001
- Study On Optical Communications
- Vol. 50, Issue 3, 23001001 (2024)
Fig. 1. The basic principle of the optical module
Fig. 2. Direct modulation optical module link
Fig. 3. The basic principle of the electrical-optical conversion circuit used in this paper
Fig. 4. Schematic diagram of the equivalent internal circuit of VCSEL
Fig. 5. Transient response curve of laser model
Fig. 6. The schematic diagram of the PRBS31 differential voltage signal directly driving the VCSEL
Fig. 7. The eye diagram of the output optical signal at dif-ferent transmission rates
Fig. 8. Test schematic diagram of scheme 1
Fig. 9. Test schematic diagram of scheme 2
Fig. 10. The typical signal eye diagram of the TOSA terminal output in scheme 1
Fig. 11. The BER under different differential voltage and bias current driving in scheme 1
Fig. 12. The eye diagram at the differential voltage of 500 mV and the bias current of 15 mA for scheme 1
Fig. 13. The typical signal eye diagram of the TOSA terminal output in scheme 2
Fig. 14. The BER under different differential voltage and bias current driving in scheme 2
Fig. 15. Variation of S parameters with frequency at two transmission distances
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Table 1. 10 Gbit/s VCSEL parameters involved in the simulation model[10]
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Table 2. The range of eye diagram parameters for the two schemes when the BER is less than 10-12
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