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Proceedings Paper

Simulation and analysis of Stochastic Parallel Gradient Descent control algorithm for coherent combining
Author(s): Yi Zheng; Feng Shen
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Paper 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.

Paper Details

Date Published: 28 January 2009
PDF: 8 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71563C (28 January 2009); doi: 10.1117/12.812004
Show Author Affiliations
Yi Zheng, Institute of Optics and Electronics (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Feng Shen, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)

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