Yifeng Liang, Jiangning Xu, Miao Wu, Hongyang He, Pengfei Jiang. Research Progress on Optical Fiber Time-Frequency Synchronization Technology[J]. Laser & Optoelectronics Progress, 2020, 57(5): 050004
- Laser & Optoelectronics Progress
- Vol. 57, Issue 5, 050004 (2020)
![Principle diagram of time-frequency simultaneous transmission and synchronization experiment[3]](/richHtml/lop/2020/57/5/050004/img_1.jpg)
Fig. 1. Principle diagram of time-frequency simultaneous transmission and synchronization experiment[3]
![Time transfer environment experiment schematic of SDH network[28]](/richHtml/lop/2020/57/5/050004/img_2.jpg)
Fig. 2. Time transfer environment experiment schematic of SDH network[28]
![Bidirectional time transfer principle based on pseudo-random noise code[32]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Bidirectional time transfer principle based on pseudo-random noise code[32]
Fig. 4. Principle block diagram of round-trip based on DWDM technology[35]
Fig. 5. Principle block diagram of bidirectional time comparison method based on DWDM technology[24]
Fig. 6. Frequency synchronization experimental process diagram of LNE-SYRTE fiber in France[41]
Fig. 7. Principle of Doppler noise suppression technology[46]
Fig. 8. Schematic of optical comb pulse signal transmission synchronization scheme in Peking University[9]
Fig. 9. Multiple topologies for optical fiber network transmission
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Table 1. Technical characteristics of typical methods
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