title: Large-area binary blazed grating coupler between nanophotonic waveguide and LED.
abstract: A large-area binary blazed grating coupler for the arrayed waveguide grating (AWG) demodulation integrated microsystem on silicon-on-insulator (SOI) was designed for the first time. Through the coupler, light can be coupled into the SOI waveguide from the InP-based C-band LED for the AWG demodulation integrated microsystem to function. Both the length and width of the grating coupler are 360 μm, as large as the InP-based C-band LED light emitting area in the system. The coupler was designed and optimized based on the finite difference time domain method. When the incident angle of the light source is 0°, the coupling efficiency of the binary blazed grating is 40.92%, and the 3 dB bandwidth is 72 nm at a wavelength of 1550 nm.
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Hongqiang
authors.identifier: 0000-0003-2870-6171
authors.initials: H
authors.lastname: Li
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Wenqian
authors.initials: W
authors.lastname: Zhou
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Meiling
authors.initials: M
authors.lastname: Zhang
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhang
authors.affiliation: School of Physics, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: Enbang
authors.initials: E
authors.lastname: Li
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Changyun
authors.initials: C
authors.lastname: Miao
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, No. 399, Binshuixi Road, Xiqing District, Tianjin 300387, China.
authors.forename: Chunxiao
authors.initials: C
authors.lastname: Tang
mesh_terms: D004867:Equipment Design; D008027:Light; D055100:Optical Fibers; D011083:Polycyclic Compounds; D012666:Semiconductors; D012825:Silicon / Q000737:chemistry*; D013057:Spectrum Analysis / Q000379:methods; D013997:Time Factors
chemical_list: D011083:Polycyclic Compounds; C079040:benzocyclobutene; D012825:Silicon