The Ameliorated Adaptive-Additive Method and Its Applying in the Designing of Diffractive Optical Element

Changli, 温昌礼 Wen; Jiarong, 季家镕 Ji; Wenhua, 窦文华 Dou; Yansheng, 宋艳生 Song

doi:10.3788/aos20103009.2473

光学学报

2010

DOI: 10.3788/aos20103009.2473

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The Ameliorated Adaptive-Additive Method and Its Applying in the Designing of Diffractive Optical Element

温昌礼 Wen Changli¹,

季家镕 Ji Jiarong²,

窦文华 Dou Wenhua³

et al.

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2013

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An ameliorated fast phase retrieval iterative algorithm based on the angular spectrum theory

Liu¹,

Ji²

2013

Acta Phys. Sin.

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For designing the light beam shaper in the optical transmitting antenna in inter-satellite optical communication system, the essential problem is, according to the input optical field and ideal output light field, to determine the shaper of phase distribution, in which its core is in phase recovery. Based on the traditional Gerchberg-Saxton (G-S) iterative algorithm, using the angular spectrum propagation theory, a kind of amplitude gradient addition iterative algorithm is proposed, and the detailed algorithm process and analysis are given. Compared with G-S algorithm, the new one using iterative process, constructs the light field amplitude feedback loop, and searches out the optimal iteration path using the gradient; their joint action accelerates the convergence process. Numerical simulation shows that the iterative error-drop speed caused by unit iterations in the new algorithm is 1.7 times that of the G-S algorithm, its convergence rate is obviously superior to the G-S algorithm; for different random initial phase, the new algorithm can effectively carry out iteration, show the advantages of the strong adaptability and the good convergent consistency. Amplitude gradient addition iterative algorithm gives a new effective way of recovering the complex optical field phase, and provides technical support for designing all kinds of diffraction optical element.

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An ameliorated fast phase retrieval iterative algorithm based on the angular spectrum theory

Liu¹,

Ji²

2013

Acta Phys. Sin.

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show abstract

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The Ameliorated Adaptive-Additive Method and Its Applying in the Designing of Diffractive Optical Element

Cited by 1 publication

References 0 publications

An ameliorated fast phase retrieval iterative algorithm based on the angular spectrum theory

An ameliorated fast phase retrieval iterative algorithm based on the angular spectrum theory

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