DocumentCode
521702
Title
Electrically Controllable Polarization Independent Two-Way Variable Optical Attenuator Based on Polymer-Stabilized Cholesteric Liquid Crystal
Author
Huang, Yuhua
Author_Institution
Inst. of Inf. Opt., Zhejiang Normal Univ., Jinhua, China
fYear
2010
fDate
19-21 June 2010
Firstpage
1
Lastpage
3
Abstract
An electrically controllable two-way variable optical attenuator (VOA) has been demonstrated by sandwiching a /4 film between two polymer-stabilized cholesteric liquid crystal films. The VOA is polarization independent and both the reflectivity and transmittance are varied with the variation of the applied voltage. With the increase of the applied voltage, the transmittance is increased and the reflectivity is decreased. The maximum extinction ratio is -17 dB and -16.5 dB for the transmittance and reflection modes, respectively and the rising and decay time is around 2 ms and 15 ms, respectively.
Keywords
Electric variables control; Liquid crystal polymers; Optical attenuators; Optical control; Optical films; Optical polarization; Optical polymers; Optical variables control; Polymer films; Reflectivity;
fLanguage
English
Publisher
ieee
Conference_Titel
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location
Chengdu, China
Print_ISBN
978-1-4244-4963-7
Electronic_ISBN
978-1-4244-4964-4
Type
conf
DOI
10.1109/SOPO.2010.5504398
Filename
5504398
Link To Document