Laboratory demonstration of the birefrigent point-diffraction interferometer wavefront sensor

被引：0

作者：

Tsukui, Ryo ^{[1
]}

Kino, Masaru ^{[2
]}

Yamamoto, Kodai ^{[2
]}

Sato, Mina ^{[3
]}

Tohnishi, Mie ^{[3
]}

Matsutani, Akihiro ^{[3
]}

Kurita, Mikio ^{[1
]}

机构：

[1] Kyoto Univ, Fac Sci, Dept Astron, Kitashirakawa Oiwake Cho,Sakyo Ku, Kyoto 6068502, Japan

[2] Kyoto Univ, Okayama Observ, 3037-5 Honjo,Kamogata Cho, Asakuchi, Okayama 7190232, Japan

[3] Tokyo Inst Technol, Open Facil Ctr, Semicond & MEMS Proc Div, 4259 Nagatsuta, Yokohama 2268503, Japan

来源：

OPTICS CONTINUUM | 2023年 / 2卷 / 02期

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

ADAPTIVE OPTICS; PHASE;

D O I：

10.1364/OPTCON.476318

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The direct imaging of extrasolar planets requires extreme adaptive optics (ExAO) in the near-infrared wavelengths. The ExAO needs a high-efficient wavefront sensor (WFS) to measure the phase aberration accurately with a small number of photons. In addition, the WFS in the ExAO is required to run at high sampling rates of 1- 7 kHz. To meet these requirements, we developed the birefringent point-diffraction interferometer (b-PDI) presented in our earlier paper. We tested the b-PDI in the laboratory with a polychromatic light source with wavelengths of 800 +/- 100 nm. The b-PDI showed a relatively high efficiency, comparable to that of a fixed pyramid WFS. The b-PDI has a low calculation cost and a small readout region, which are suitable for high-speed sampling at 6.5 kHz.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：382 / 396

页数：15

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