Vertical coupling and polarization-independent subwavelength grating beam splitter based on silicon-on-insulator

2015 ◽  
Author(s):  
Jingjing Zhang ◽  
Junbo Yang ◽  
Huanyu Lu ◽  
Wenjun Wu ◽  
Jie Huang ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Silicon On Insulator ◽  
Subwavelength Grating ◽  
Vertical Coupling ◽  
Polarization Independent

Research of High Performance Polarization-Independent Grating Beam Splitter

2013 ◽  
Vol 310 ◽  
pp. 481-485
Author(s):  
Ke Zhao ◽  
Xiao Min Lei ◽  
Guo Feng Xie ◽  
Wen Hua Xiong
Keyword(s):  
High Performance ◽  
Beam Splitter ◽  
Transverse Electric ◽  
Transverse Magnetic ◽  
Silicon On Insulator ◽  
Material System ◽  
Design And Optimization ◽  
Rigorous Coupled Wave Analysis ◽  
Rigorous Coupled Wave ◽  
Polarization Independent

Based on a silicon-on-insulator (Silicon-on-insulator, SOI) material system design and optimization of a high performance, the polarization independent of 1 × 3 subwavelength grating stars beam splitter. By a rigorous coupled-wave analysis method showed that, in the 1550nm wavelength range, at vertical incidence, the device on the transverse electric field (transverse electric, TE) ,the 0 and ± 1 order transmittance is 31%, 32%, 32%,respectively; cross the magnetic field (transverse magnetic, TM), the 0 and ± 1 transmittance is 33%, 32%, 32%, respectively.

scholarly journals SOI multimode waveguide bend with radially bridged SWGs for broadband (de)multiplexing -INVITED

2021 ◽  
Vol 255 ◽  
pp. 01003
Author(s):  
Kevan K. MacKayt ◽  
Winnie N. Ye
Keyword(s):  
Effective Radius ◽  
Silicon On Insulator ◽  
Propagation Loss ◽  
Multimode Waveguide ◽  
Broad Bandwidth ◽  
Subwavelength Grating ◽  
Mode Division Multiplexing ◽  
Design Choice ◽  
Design Freedom ◽  
Waveguide Bend

A novel broadband multimode waveguide bend is proposed that supports the propagation of multiple TE modes on a silicon-on-insulator platform. The gradient curvature bend utilizes trapezoidal subwavelength grating (SWG) segments, connected by adiabatically tapered radial strips to achieve efficient mode (de)multiplexing. The inclusion of the radial strips offers an extra degree of design freedom, allowing the realization of a multimode bend with only one single full etch step. The access waveguide has a width of 2.075 μm with an effective radius of 10 μm. Propagation loss for all modes remains below 2.96 dB, and intermodal crosstalk has a maximum of -19 dB across a broad bandwidth of 100 nm, centred at 1550 nm. This work presents an excellent design choice for broadband mode-division multiplexing operations.

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

2019 ◽  
Vol 48 (5) ◽  
pp. 520003
Author(s):  
张晔岚 Zhang Yelan ◽  
张 昆 Zhang Kun ◽  
孔伟金 Kong Weijin ◽  
李采彧 Li Caiyu ◽  
夏 峰 Xia Feng ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Polarization Beam Splitter ◽  
Subwavelength Grating ◽  
Silica Layers ◽  
Broadband Terahertz

scholarly journals Compact high-performance adiabatic 3-dB coupler enabled by subwavelength grating slot in the silicon-on-insulator platform

2018 ◽  
Vol 26 (23) ◽  
pp. 29873 ◽  
Author(s):  
Luhua Xu ◽  
Yun Wang ◽  
Amar Kumar ◽  
Eslam El-Fiky ◽  
Deng Mao ◽  
...  
Keyword(s):  
High Performance ◽  
Silicon On Insulator ◽  
Subwavelength Grating
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