Multichannel-Hadamard calibration of high-order adaptive optics systems | Zendy

Youming Guo | Zendy; Changhui Rao | Zendy; Hua Bao | Zendy; Ang Zhang | Zendy; Xuejun Zhang | Zendy; Kai Wei | Zendy

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Multichannel-Hadamard calibration of high-order adaptive optics systems

Author(s) -

Youming Guo,

Changhui Rao,

Hua Bao,

Ang Zhang,

Xuejun Zhang,

Kai Wei

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.013792

Subject(s) - hadamard transform , optics , adaptive optics , hadamard matrix , deformable mirror , coupling (piping) , computer science , calibration , matrix (chemical analysis) , channel (broadcasting) , voltage , physics , algorithm , materials science , telecommunications , quantum mechanics , metallurgy , composite material

we present a novel technique of calibrating the interaction matrix for high-order adaptive optics systems, called the multichannel-Hadamard method. In this method, the deformable mirror actuators are firstly divided into a series of channels according to their coupling relationship, and then the voltage-oriented Hadamard method is applied to these channels. Taking the 595-element adaptive optics system as an example, the procedure is described in detail. The optimal channel dividing is discussed and tested by numerical simulation. The proposed method is also compared with the voltage-oriented Hadamard only method and the multichannel only method by experiments. Results show that the multichannel-Hadamard method can produce significant improvement on interaction matrix measurement.

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