Jin Zhiming, Tong Shoufeng, Yu Xiaonan, Song Yansong, Zhang Lei, Zhao Baiqiu. Research on Nutation Coupling of Single-Mode Fiber Based on Peak Power Feedback[J]. Chinese Journal of Lasers, 2020, 47(11): 1106003
- Chinese Journal of Lasers
- Vol. 47, Issue 11, 1106003 (2020)
Fig. 1. Schematic diagram of nutation convergence process. (a) First stage; (b) second stage; (c) third stage; (d) fourth stage
Fig. 2. Spatial location of nutation coupling
Fig. 3. Principle of nutation coupling
Fig. 4. Flow chart of our algorithm
Fig. 5. Experimental setup. (a) Schematic diagram; (b) physical diagram
Fig. 6. Optical power change during nutation convergence
Fig. 7. Coupling range under system tracking state
Fig. 8. Received optical power of the photodetector under different disturbances. (a) Disturbance1; (b) disturbance2
Fig. 9. Coupling efficiency under different angle errors
Fig. 10. Test results when the signal-to-noise ratio is 13.1 dB. (a) Power received by the detector; (b) average coupling efficiency of the system
Fig. 11. Test results when the signal-to-noise ratio is 7.9 dB. (a) Power received by the detector; (b) average coupling efficiency of the system
Fig. 12. Test results when the signal-to-noise ratio is 4.6 dB. (a) Power received by the detector; (b) average coupling efficiency of the system
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Table 1. Parameters of nutation coupling system
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