DocumentCode
3249564
Title
LiNbO3 Based S-Bend Waveguide Variable Optical Attenuator
Author
Li, Xihua ; Zhou, Qiang ; Ge, Luquan ; Jiang, Xiaoqing ; Yang, Jianyi ; Wang, Minghua
Author_Institution
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
fYear
2009
fDate
14-16 Aug. 2009
Firstpage
1
Lastpage
3
Abstract
A novel design of a variable optical attenuator based on Ti : LiNbO3 has been proposed. The attenuation effect is improved with the help of radiation loss of S-bend optical waveguide. According to the simulation of BPM, the attenuation can be over 30 dB when applying a negative 10 V voltage, whereas, the insertion loss is less than 1.2 dB. At the same time, it has the advantage of small size and easy fabricating. The experiment result shows the attenuation can be as low as 27 dB when applying an 18.5 V negative voltage.
Keywords
lithium compounds; niobium compounds; optical attenuators; optical waveguides; titanium; BPM; LiNbO3:Ti; S-bend optical waveguide; variable optical attenuator; voltage -10 V; voltage -18.5 V; Attenuation; Electrodes; Insertion loss; Optical attenuators; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Voltage; Waveguide transitions;
fLanguage
English
Publisher
ieee
Conference_Titel
Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-4412-0
Type
conf
DOI
10.1109/SOPO.2009.5230054
Filename
5230054
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