Narrow-band tunable wavelength-selective filters of Fabry-Perot interferometers with a liquid crystal intracavity
Narrow-band tunable wavelength-selective filters of Fabry-Perot interferometers with a liquid crystal intracavity
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内腔液晶法布里-珀罗干涉仪窄带可调谐波长选择滤光片
DOI：
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发表时间：
1991
影响因子：
2.6
通讯作者：
T. Kurokawa
中科院分区：
文献类型：
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作者：
K. Hirabayashi;H. Tsuda;T. Kurokawa
本文描述了液晶腔法布里-珀罗涉仪可调谐波长选择滤光片的优化设计。使用指数为1.5506和1.4771的向列相液晶。研究了液晶分子的排列方法。这种滤光片在1.5微米波长下具有高精细(150-410)、高透过率(20%-70%)、窄的透射峰(半高宽：0.17-0.35 nm)和大的漂移(>；50 nm)。这些滤光片有可能在WDM中选择50多个通道。
Optimum designs for tunable wavelength-selective filters of Fabry-Perot interferometers with a liquid crystal intracavity are described. A nematic liquid crystal with index numbers 1.5506 and 1.4771 was used. Methods of aligning liquid crystal molecules were studied. The filters provide high finesse (150-410), high transmittance (20-70%), narrow transmission peak (FWHM: 0.17-0.35 nm), and a large shift (>50 nm) at a wavelength of 1.5 mu m. These filters have a potential to select over 50 channels in WDM.<<ETX>>