ATE-TM MODE SPLITTER ON LITHIUM-NIOBATE USING TI, NI, AND MGO DIFFUSIONS

被引：57
作者：
WEI, PK
WANG, WS
机构：
[1] Department of Electrical Engineering, National Taiwan University, Taipei
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1994年 / 6卷 / 02期
关键词：
D O I：
10.1109/68.275439
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 new TE-TM mode splitter with an asymmetric Y-junction structure fabricated by diffusing different materials into y-cut lithium niobate is presented. Randomly polarized light launched into a titanium indiffused waveguide is split into TE and TM modes by two different single-polarization waveguides. The ordinary-polarized waveguide is made by nickel indiffusion and the extraordinary-polarized waveguide by magnesium-oxide induced lithium outdiffusion. The measured extinction ratios are greater than 20 dB for both TE and TM modes. The devices operate over a wide wavelength range and have a large fabrication tolerance.
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收藏
页码：245 / 248
页数：4
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