Novel optical polarization splitter in lithium niobate

被引：0
|
作者：
Lin, KC [1 ]
Hsu, WH [1 ]
Wang, WS [1 ]
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan
来源：
PROCEEDINGS OF THE SIXTH CHINESE OPTOELECTRONICS SYMPOSIUM | 2003年
关键词：
D O I：
10.1109/COS.2003.1278226
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A tunable Y-branch Ni:LiNbO3 polarization (mode) splitter with a ridged input arm is presented. The ridge is used to lower the tuning voltage and thus enhance the tuning flexibility of the polarized fields. To improve the confinement of Ni-indiffused waveguide, Zn and Ni are both diffused at the same time. To use the electro-optic modulation, the polarization splitter is implemented in a Z-cut Y-propagating LiNbO3. Experimental results show that the tuning voltage can be reduced by a factor of about 1/3 with a ridge of height 2mum. The measured extinction ratio is 21dB for the transverse electric (TE) mode and 18dB for the transverse magnetic (TM) mode.
引用
收藏
页码：288 / 291
页数：4
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