Polymer-stabilized cholesteric liquid crystal for polarization-independent variable optical attenuator

被引:30
作者
Du, F [1 ]
Lu, YQ [1 ]
Ren, HW [1 ]
Gauza, S [1 ]
Wu, ST [1 ]
机构
[1] Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 10期
关键词
liquid crystal; polymer; variable optical attenuator;
D O I
10.1143/JJAP.43.7083
中图分类号
O59 [应用物理学];
学科分类号
摘要
A reflective-type polymer-stabilized cholesteric liquid crystal (PSCLC) cell was demonstrated at lambda = 1550 nm laser wavelength. It showed a high attenuation range (similar to30 dB), a low operating voltage (similar to12 V-rms), a highly efficient polarization-independent behavior and flat wavelength dependence in the range of 1525-1575 nm. The combined effects of curing temperature, chiral dopant, and monomer concentration were investigated and optimized to maximally improve the PSCLC properties. The potential application of PSCLC as a polarization-independent variable optical attenuator is emphasized.
引用
收藏
页码:7083 / 7086
页数:4
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