Polarization-dependent plasmonic splitter based on low-loss polymer optical materials

2017 2nd International Conference on Innovative Engineering Materials

Qian, Guang^1 ; Fu, Xing-Chang^2,3 ; Zhang, Li-Jiang^2,3 ; Liu, Yi-Ran^2,3 ; Zhao, Ning^2,3 ; Zhang, Tong^1,2,3

School of Instrument Science and Engineering, Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology, Ministry of Education, Southeast University, Nanjing, China^1

Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China^2

Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute, Southeast University, Suzhou, China^3

关键词: Long-range surface plasmons;    Low loss polymers;    Low propagation loss;    Photonic integrated circuits;    Polymer waveguides;    TE polarizations;    Threedimensional (3-d);    TM polarization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/284/1/012020/pdf
DOI  :  10.1088/1757-899X/284/1/012020

来源: IOP

【 摘 要 】

A polarization-dependent optical beam splitter consisting of a straight long-range surface plasmon polariton (LRSPP) waveguide and an S-bend polymer waveguide was designed, fabricated and measured in this paper. At the splitting section, the two different waveguides are vertically coupled. The measurenment results show that the splitter operated in dual-channel mode at TM polarization, and single-channel mode at TE polarization. In addition, the polymer waveguide and LRSPP waveguide in the splitter exhibit low propagation loss of 0.51 dB/cm and 1.7 dB/cm, respectively. The hybrid beam splitter has wide potential applications in three dimensional (3D) multilayer photonic integrated circuits (PICs).