کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1536917 | 996576 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition](/preview/png/1536917.png)
چکیده انگلیسی
We describe a concept of using segmented adaptive optics (AO) to correct the higher-order wavefront aberrations (HOWAs) in an atmospheric turbulence condition. The effects of piston and tip-tilt corrections are analyzed by numerical simulation. An experiment test-bed is built for verification. Seven spatial beamlets are combined into a hexagonal array by use of a pyramid, and an active segmented mirror is used for phase modulation. The AO control is implemented by stochastic parallel gradient descent (SPGD) algorithm. Experimentally, after segmented AO is enabled, the HOWA in warmed air environment has been effectively corrected and the peak intensity of far-field has been enhanced by 5 times.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 284, Issue 20, 15 September 2011, Pages 4975–4982
Journal: Optics Communications - Volume 284, Issue 20, 15 September 2011, Pages 4975–4982
نویسندگان
Yi Zheng, Xiaohua Wang, Li Deng, Feng Shen, Xinyang Li,