Improved design method of liquid crystal-based tunable filter

被引：1

作者：

Cao X.-Y. ^{[1
]}

Zheng Z.-R. ^{[1
]}

Li H.-F. ^{[1
]}

Liu X.-D. ^{[1
]}

机构：

[1] State Key Laboratory of Modern Optical Instrumentation, Zhejiang University

来源：

Zhejiang Daxue Xuebao(Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2010年 / 44卷 / 02期

关键词：

Liquid crystal (LC); Narrow-band filtering; Tunable filter;

D O I：

10.3785/j.issn.1008-973X.2010.02.034

中图分类号：

学科分类号：

摘要：

The design method of liquid crystal (LC)-based filter was improved to accomplish program-controlling tunable filter with continuous tuning ability in visible spectrum range. Software simulation and relative experiments of design results were conducted. The parameters of the quartz plates and LC cells in every stage of the filter system were decided by analyzing the birefringence path difference required by every stage and the tunable birefringence path difference provided by LC cell. A six-stage tunable filter system was designed. Simulation results proved the visible spectrum tuning ability of the filter system. Full width at half maximum (FWHM) can be at least 8 nm and narrow-band filtering can be achieved in a wide spectrum range from 440 nm to 700 nm. Six stages of the filter system were assembled and tested. Results show that the main performance index can be achieved.

引用

页码：398 / 402

页数：4

共 12 条

[1]

Zhang J., Designing and testing of multi-stage LC-based optical filter, pp. 1-10, (2006)

[2]

Long W.-H., Study of Fabry-Perot tunable optical filter employing MEMS technology, pp. 8-11, (2006)

[3]

Kopp G., Tunable birefringent filters using liquid crystal variable retarders, Proceeding of SPIE, pp. 193-201, (1995)

[4]

Zhao J., Study of angle tunable optical filter employing MEMS technology, pp. 11-12, (2005)

[5]

Evans J., The birefringent filter, Journal of the Optical Society of America, 39, 3, pp. 229-242, (1949)

[6]

Solc I., Birefringent chain filters, Journal of the Optical Society of America, 55, 6, pp. 621-625, (1965)

[7]

Lin W., Xue F., Zhang Y.-H., Et al., Acousto-optic tunable filter and its application, Control and Automation, 21, 10 S, pp. 127-128, (2005)

[8]

Yun M.-J., Designing and testing of LC-based optical filter, (2002)

[9]

Wen M.-T., Yao J.-P., Birefringent filter design by use of a modified genetic algorithm, Applied Optics, 45, 17, pp. 3940-3950, (2006)

[10]

Pang Y.-T., Li G.-H., Liang Z.-X., Analysis to character of tunable Lyot filter, Journal of Optoelectronics? Laser, 11, 2, pp. 167-169, (2004)

← 1 2 →