Simulation and analysis of Stochastic Parallel Gradient Descent control algorithm for coherent combining

Yi Zheng; Feng Shen

doi:10.1117/12.812004

28 January 2009 Simulation and analysis of Stochastic Parallel Gradient Descent control algorithm for coherent combining

Yi Zheng, Feng Shen

Author Affiliations +

Proceedings Volume 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments; 71563C (2009) https://doi.org/10.1117/12.812004
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

A new phase locking method for Master Oscillate Power Amplifier (MOPA) coherent combining system is proposed in this paper. The algorithm called Stochastic Parallel Gradient Descent (SPGD) control is adopted to correct piston errors and generate the feedback signals. The capability of this algorithm for coherent combining is demonstrated by simulation, and the relative parameters which directly influence the algorithm's convergence are also analyzed.

Citation Download Citation

Yi Zheng and Feng Shen "Simulation and analysis of Stochastic Parallel Gradient Descent control algorithm for coherent combining", Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71563C (28 January 2009); https://doi.org/10.1117/12.812004

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