Xiong Yupeng, Su Rongtao, Li Xiao, et al. Coherent beam combining based on adaptive polarization and active phase control technique[J]. High Power Laser and Particle Beams, 2013, 25: 5-6. doi: 10.3788/HPLPB20132501.0005
Citation:
Xiong Yupeng, Su Rongtao, Li Xiao, et al. Coherent beam combining based on adaptive polarization and active phase control technique[J]. High Power Laser and Particle Beams, 2013, 25: 5-6. doi: 10.3788/HPLPB20132501.0005
Xiong Yupeng, Su Rongtao, Li Xiao, et al. Coherent beam combining based on adaptive polarization and active phase control technique[J]. High Power Laser and Particle Beams, 2013, 25: 5-6. doi: 10.3788/HPLPB20132501.0005
Citation:
Xiong Yupeng, Su Rongtao, Li Xiao, et al. Coherent beam combining based on adaptive polarization and active phase control technique[J]. High Power Laser and Particle Beams, 2013, 25: 5-6. doi: 10.3788/HPLPB20132501.0005
An experiment of coherent beam combination of a polarization maintaining(PM) ytterbium doped fiber amplifier (YDFA) and a non-PM YDFA is carried out. The adaptive polarization control based on the stochastic parallel gradient descent (SPGD) algorithm is obtained in the non-PM YDFA to make the output light polarization stable. The single frequency dithering algorithm is taken to compensate the phase errors in the system. The contrast of the far-field pattern increases remarkably from 80.1% to 87.2%. A scalable architecture for coherent beam combining of two styles of fiber amplifiers is also proposed.
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