Shiwei Zhu, Lei Sheng, Yongkai Liu, Yuliang Zhang, Shijie Gao. Laser Nutation Coupling Algorithm for Single Mode Fiber Based on Energy Feedback[J]. Chinese Journal of Lasers, 2019, 46(2): 0206001
- Chinese Journal of Lasers
- Vol. 46, Issue 2, 0206001 (2019)
Fig. 1. Diagram of fiber coupling principle
Fig. 2. Coupling efficiency versus ai(i=1,2)
Fig. 3. Wavefront. (a) Before compensation; (b) after compensation
Fig. 4. Relationship between iteration times and normalized coupling efficiency. (a) n=8; (b) re=0.1
Fig. 5. Experimental setup. (a) Scheme of experiment; (b) picture of experimental system
Fig. 6. Experimental results. (a) n=8; (b) r=0.88 μm
Fig. 7. Changing curves of algorithm performance with r and n. (a) Iteration times when converging; (b) tremor amplitude after converging
Fig. 8. Correction results under different experimental conditions. (a) H=1.2 V, T=300, r=0.88 μm; (b) H=1.2 V,T=300, r=1.32 μm; (c) H=1.8 V, T=300, r=0.88 μm; (d) H=1.2V, T=200, r=0.88 μm
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