CMOS-compatible Si-wire polarization beam splitter based on wavelength-insensitive coupler
CMOS-compatible Si-wire polarization beam splitter based on wavelength-insensitive coupler
复制标题
DOI：
10.1587/elex.16.20181126
复制
发表时间：
2019-02
期刊：
影响因子：
--
通讯作者：
Y. Sawada;T. Fujisawa;Takanori Sato;K. Saitoh
中科院分区：
文献类型：
--
作者：
Y. Sawada;T. Fujisawa;Takanori Sato;K. Saitoh
采用标准互补金属氧化物半导体工艺制作了一种基于波长不敏感耦合器的超宽带硅偏振分束器。PBS具有三个相同的定向耦合器和两个相同的延迟线，具有点对称布局。我们实验证明的PBS的宽带操作。在1532 nm至1649 nm波长范围内，TE和TM模式的串扰均小于−12 dB。此外，我们首次从理论上讨论了PBS的可调谐性。
An ultrabroadband silicon polarization beam splitter (PBS) based on a wavelength-insensitive coupler is fabricated by a standard complementary metal oxide semiconductor technology. The PBS has three identical directional couplers and two identical delay lines with a point symmetric layout. We experimentally demonstrate the broadband operation of the PBS. The crosstalk is less than −12-dB for both TE and TM modes over the wavelength range from 1532 nm to 1649 nm. Additionally, we theoretically discuss a tunability of the PBS for the first time.