Phase locking of a coherent array of 32 fiber lasers

Su Rongtao; Zhou Pu; Wang Xiaolin; Ma Yanxing; Xu Xiaojun

doi:10.11884/HPLPB201426.110101

Volume 26 Issue 11

Sep. 2015

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(11): 110101

Cai Jinchi, Hu Linlin, Ma Guowu, et al. Theoretical method for fast optimization of rectangular transition structure in folded waveguide devices[J]. High Power Laser and Particle Beams, 2015, 27: 053101. doi: 10.11884/HPLPB201527.053101

Citation:

Su Rongtao, Zhou Pu, Wang Xiaolin, et al. Phase locking of a coherent array of 32 fiber lasers[J]. High Power Laser and Particle Beams, 2014, 26: 110101. doi: 10.11884/HPLPB201426.110101

Citation:

Su Rongtao, Zhou Pu, Wang Xiaolin, et al. Phase locking of a coherent array of 32 fiber lasers[J]. High Power Laser and Particle Beams, 2014, 26: 110101. doi: 10.11884/HPLPB201426.110101

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Phase locking of a coherent array of 32 fiber lasers

doi: 10.11884/HPLPB201426.110101

1.
College of Opto-Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China

Received Date: 2014-09-06
Rev Recd Date: 2014-10-22
Publish Date: 2014-11-04

Abstract

Abstract

An experiment of phase locking of 32 fiber lasers is reported. A coherent array of 32 fiber lasers is built and a high-speed high-precision phase controller is designed based on field programmable gate array(FPGA). When the stochastic parallel gradient descent (SPGD) algorithm is implemented by the phase controller, the phases of the fiber lasers are locked and the output power of the combined laser is enhanced by a factor of about 26.
- coherent beam combination,
- fiber laser,
- phase locking,
- stochastic parallel gradient descent algorithm

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