Fig. 1. System structure of CBC system where beams are sampled individually

Fig. 2. System structure of SPGD-based CBC system where beams are sampled simultaneously

Fig. 3. System structure of multi-dithering-based CBC system where beams are sampled simultaneously

Fig. 4. 100 simulation results of CBC where beams are sampled individually. (a) 4 channels; (b) 8 channels; (c) 16 channels

Fig. 5. 100 simulation results of SPGD-based CBC where beams are sampled simultaneously. (a) 4 channels; (b) 8 channels; (c) 16 channels

Fig. 6. Relationship between error signal and polarization ratio. (a) Polarization ratios of beams and (b) Polarization signals when polarization does not change. (c) Polarization ratios of beams and (d) Polarization signals when polarization changes dynamically

Fig. 7. One result of 4-channel CBC. (a) Combined beam intensity; (b) Polarization error signal of beam 1 with time; (c) The instantaneous fluctuation of polarization error signal of beam 1; (d) The polarization error signals after filtering

Fig. 8. 100 simulation results of multi-dithering-based CBC where beams are sampled simultaneously. (a) 4 channels; (b) 8 channels; (c) 16 channels

Fig. 9. Effect of phase residual on combining efficiency of (a) multi-dithering-based and (b) SPGD-based CBC system where beams are sampled simultaneously; (c) Combining efficiency versus reference amplitude in multi-dithering-based CBC system where beams are sampled simultaneously and the extra residual phase is 0.1 rad

Fig. 10. Example of dynamic phase noise and its spectrum. (a)-(b) High-order filter model; (c)-(d) First-order filter model

Fig. 11. Example of dynamic polarization noise and its spectrum. (a)-(b) High-order filter model; (c)-(d) First-order filter model

Fig. 12. The impact of dynamic noise on combining efficiency. Polarization noise of (a) high-order and (b) first-order filter model. Phase noise of (c) high-order and (d) first-order filter model