消光比
插入损耗
光学
材料科学
极化(电化学)
绝缘体上的硅
分路器
波长
串扰
分束器
电子束光刻
光电子学
物理
作者
Yingjie Liu,Shuai Wang,Yujie Wang,Wei Liu,Hucheng Xie,Yong Yao,Qinghai Song,Xinliang Zhang,Yu Yu,Ke Xu
出处
期刊:Optics Letters
[The Optical Society]
日期:2019-09-15
卷期号:44 (18): 4495-4495
被引量:16
摘要
An ultra-compact polarization splitter-rotator with a discretized subwavelength nanostructure is demonstrated on the silicon-on-insulator platform. The device has a length of only 7.92 μm. For TE0-TE0, a low insertion loss (<0.2 dB), low crosstalk (<-20 dB), and high extinction ratio (>40 dB) are achieved over a broad wavelength range from 1500 nm to 1600 nm. For TM0-TE0, the insertion loss is lower than 1 dB over 40 nm bandwidth (1530-1570 nm). The crosstalk is lower than -25 dB, and the extinction ratio is larger than 20 dB, from 1500 nm to 1600 nm.
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