Title :
LiNbO3 Based 1×2 Y-Branch Digital Optical Switch Integrated with S-Bend Variable Optical Attenuator
Author :
Wang Huan ; Xihua Li ; Zhou Qiang ; Ge Luquan ; Jiang Xiaoqing ; Yang Jianyi
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
A novel design of 1×2 Y-branch digital optical switch (DOS) integrated with S-bend variable optical attenuator (VOA) based on Ti : LiNbO3 is proposed. The purpose of the S-bend VOA is to suppress the crosstalk of the DOS. According to the simulation result, the crosstalk can be over 30dB when 6 V voltage is applied. We realized this device by using Ti diffused LiNbO3 waveguide process. The crosstalk measured can achieve 28dB when a voltage about 15 V is applied. According to the experiment result, we can prove that the structure of 1×2 Y-branch digital optical switch integrated with S-bend variable optical attenuator is available.
Keywords :
integrated optics; lithium compounds; optical attenuators; optical crosstalk; optical switches; titanium compounds; LiNbO3; S-bend variable optical attenuator; Y-branch digital optical switch; crosstalk; integrated optics; voltage 6 V; Communication switching; Electrodes; Electrooptical waveguides; Optical attenuators; Optical crosstalk; Optical refraction; Optical switches; Optical variables control; Optical waveguides; Voltage;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504362
