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Single acousto-optic tunable filter based double filtering imaging system
Author(s): Xiaofa Zhang; Zhenfei Sheng; Yaqi Chen; Chunguang Zhang; Hao Wang; Xi Huang; Zhiwei Tan; Weijie Qiu; Pengchong Wang; Wenyao Liu; Maoqiang Duan; Xiaoli Huang; Ruoling Zheng; Xueqing Zeng; Rongcheng Lai; Jiaying Yu
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Paper Abstract

The double filtering system based on single crystal acousto-optic tunable filter (AOTF) in order to improve spectral resolution and reduce side lobe is designed and demonstrated. The effects of single filtering and double filtering on AOTF performance are analyzed. Furthermore, the proposed double filtering technology has the characteristics of high speed, strong stability, flexible tuning, narrow bandwidth and multi-wavelength selection. In this experiment, the spectral bandwidth, side lobe and diffraction efficiency of single filtering and single crystal double filtering in visible range are measured. A double optical wedge compensator is set up at the exit of the double filtering experiment system to compensate the diffracted light drift caused by chromatic aberration. In conclusion, the experimental method of double filtering based on single crystal of tellurium dioxide is better than that of single filtering in spectral resolution and side lobe suppression.

Paper Details

Date Published: 17 May 2019
PDF: 8 pages
Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 1117022 (17 May 2019); doi: 10.1117/12.2533586
Show Author Affiliations
Xiaofa Zhang, Fujian Normal Univ. (China)
Zhenfei Sheng, Fujian Normal Univ. (China)
Yaqi Chen, Fujian Normal Univ. (China)
Chunguang Zhang, Fujian Normal Univ. (China)
Key Lab. of Spectral Imaging Technology (China)
Hao Wang, Fujian Normal Univ. (China)
Key Lab. of Spectral Imaging Technology (China)
Xi Huang, Fujian Normal Univ. (China)
Key Lab. of Spectral Imaging Technology (China)
Zhiwei Tan, Fujian Normal Univ. (China)
Weijie Qiu, Fujian Normal Univ. (China)
Pengchong Wang, Fujian Normal Univ. (China)
Key Lab. of Spectral Imaging Technology (China)
Wenyao Liu, Fujian Normal Univ. Hospital (China)
Maoqiang Duan, Fujian Normal Univ. (China)
Shenyang Institute of Automation (China)
Xiaoli Huang, Fujian Normal Univ. (China)
Institute of Scientific and Technical Information of Liaoning Province (China)
Ruoling Zheng, Fujian Normal Univ. (China)
Xueqing Zeng, Fujian Normal Univ. (China)
Rongcheng Lai, Fujian Normal Univ. (China)
Jiaying Yu, Fujian Normal Univ. (China)


Published in SPIE Proceedings Vol. 11170:
14th National Conference on Laser Technology and Optoelectronics (LTO 2019)
Jianqiang Zhu; Weibiao Chen; Zhenxi Zhang; Minlin Zhong; Pu Wang; Jianrong Qiu, Editor(s)

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