Research on 1×4 polarization-independent beam splitter based on silicon waveguide

2019 ◽  
Author(s):  
Zhengman Zhang ◽  
He-Ming Chen
Keyword(s):  
Beam Splitter ◽  
Silicon Waveguide ◽  
Polarization Independent

Investigation on multilayer microstructure grating for three-port splitting

2016 ◽  
Vol 30 (16) ◽  
pp. 1650195
Author(s):  
Wenhao Shu ◽  
Bo Wang ◽  
Hao Pei ◽  
Hongtao Li ◽  
Li Chen ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Single Layer ◽  
Zeroth Order ◽  
First Order ◽  
Transmission Grating ◽  
Dielectric Layers ◽  
Incident Waves ◽  
Reflection Grating ◽  
Independent Property ◽  
Polarization Independent

A new structure of microstructure reflection three-port beam splitter grating is described in this paper. The grating includes two dielectric layers and a metal slab on the substrate, where incident waves are reflected into the zeroth-order and the ± first-order with polarization-independent property. With the optimized grating profile, reflection efficiencies’ ratios between the first-order and the zeroth-order can reach 0.998 and 1.001 for TE and TM polarizations, respectively. Especially, the reflection grating can diffract efficiencies more than 30% into the ± first-order and the zeroth-order with the incident angular bandwidth of −1.9–1.9[Formula: see text] for TM polarization, which can have merits compared with single-layer transmission grating.

Design and fabrication of a polarization-independent two-port beam splitter

2009 ◽  
Vol 48 (29) ◽  
pp. 5636 ◽  
Author(s):  
Jijun Feng ◽  
Changhe Zhou ◽  
Jiangjun Zheng ◽  
Hongchao Cao ◽  
Peng Lv
Keyword(s):  
Beam Splitter ◽  
Polarization Independent

scholarly journals Planar-type polarization beam splitter based on a bridged silicon waveguide coupler

2015 ◽  
Vol 23 (2) ◽  
pp. 998 ◽  
Author(s):  
Dong Wook Kim ◽  
Moon Hyeok Lee ◽  
Yudeuk Kim ◽  
Kyong Hon Kim
Keyword(s):  
Beam Splitter ◽  
Polarization Beam Splitter ◽  
Waveguide Coupler ◽  
Silicon Waveguide

Compact Polarization Beam Splitter Based on Surface Plasmon Polariton Silicon Waveguide

2014 ◽  
Vol 609-610 ◽  
pp. 1233-1238 ◽  
Author(s):  
Jun Bo Yang ◽  
Zheng Zhang Shao ◽  
Su Zhi Xu ◽  
Jia Xu ◽  
Zhou Kuo
Keyword(s):  
Surface Plasmon ◽  
Large Scale ◽  
Beam Splitter ◽  
Coupling Efficiency ◽  
Polarized Light ◽  
Polarization Beam Splitter ◽  
Photonic Integration ◽  
Silicon Waveguide ◽  
Evanescent Coupling ◽  
Theoretical Predictions

A compact polarization beam splitter (PBS) based on a silicon waveguide-silver nanoribbon-silicon waveguide is proposed and demonstrated numerically by utilizing the evanescent coupling between a strip-nanowire and a nanoslot waveguide. Two-dimensional (2-D) FDTD simulations were performed to elucidate the properties of surface plasmon polaritons (SPPs) in this device made from silicon-metal-silicon, and were found to agree well with the theoretical predictions. TE and TM polarized light are respectively separated into two different output ports of Y-shaped silicon waveguide in which the coupling efficiency is 62% and 45% for 1.55μm wavelength, respectively. The proposed PBS structure could be utilized to develop ultracompact optical polarization modulating device for large-scale photonic integration and optical information processing.

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