Yang Liu, Shoufeng Tong, Shuai Chang, Yansong Song, Yan Dong, Yi Dong, Zhe An. Carrier Recovery Technology of Optical Phase Locked Loop in Coherent Laser Communication System[J]. Acta Optica Sinica, 2018, 38(1): 0106001
- Acta Optica Sinica
- Vol. 38, Issue 1, 0106001 (2018)
Fig. 1. Block diagram of carrier recovery control system
Fig. 2. Optical phase locked loop
Fig. 3. Loop phase detector
Fig. 4. Relationship of SNR and phase contrast
Fig. 5. Relationship of delay and phase contrast
Fig. 6. Schematic of test system
Fig. 7. Original signal
Fig. 8. Baseband signal of recovered
Fig. 9. Eye diagram
Fig. 10. Relationship between error rate and signal power when communication rate is 5 Gb/s
Fig. 11. Relationship betweencommunication rate and signal power
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