Zernike wavefront sensor (ZWFS) development for Low Order Wavefront Sensing (LOWFS)

被引：2
|
作者：
Wang, Xu [1 ]
Shi, Fang [1 ]
Wallace, J. Kent [1 ]
机构：
[1] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
来源：
SPACE TELESCOPES AND INSTRUMENTATION 2016: OPTICAL, INFRARED, AND MILLIMETER WAVE | 2016年 / 9904卷
关键词：
Wavefront sensing; Zernike phase contrast; WFIRST; LOWFS;
D O I：
10.1117/12.2231252
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
ZWFS is known to be photon noise optimal for measuring low order aberrations. Recently, ZWFS was selected as the baseline LOWFS technology on WFIRST for its sensitivity, accuracy, and its ease of integration with the starlight rejection mask. In this paper, we present the development of ZWFS sensor, including the algorithm description, sensitivity analysis, and some early experimental model validation results from a fabricated ZWFS phase mask on a stand-alone LOWFS testbed.
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页数：9
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