title: Preliminary investigation of an SOI-based arrayed waveguide grating demodulation integration microsystem.
abstract: An arrayed waveguide grating (AWG) demodulation integration microsystem is investigated in this study. The system consists of a C-band on-chip LED, a 2 × 2 silicon nanowire-based coupler, a fiber Bragg grating (FBG) array, a 1 × 8 AWG, and a photoelectric detector array. The coupler and AWG are made from silicon-on-insulator wafers using electron beam exposure and response-coupled plasma technology. Experimental results show that the excess loss in the MMI coupler with a footprint of 6 × 100 μm(2) is 0.5423 dB. The 1 × 8 AWG with a footprint of 267 × 381 μm(2) and a waveguide width of 0.4 μm exhibits a central channel loss of -3.18 dB, insertion loss non-uniformity of -1.34 dB, and crosstalk level of -23.1 dB. The entire system is preliminarily tested. Wavelength measurement precision is observed to reach 0.001 nm. The wavelength sensitivity of each FBG is between 0.04 and 0.06 nm/dB.
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Hongqiang
authors.initials: H
authors.lastname: Li
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Wenqian
authors.initials: W
authors.lastname: Zhou
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Xiaye
authors.initials: X
authors.lastname: Dong
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhang
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Changyun
authors.initials: C
authors.lastname: Miao
authors.affiliation: School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Meiling
authors.initials: M
authors.lastname: Zhang
authors.affiliation: 1] School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China [2] 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, Tianjin 300387, China.
authors.forename: Chunxiao
authors.initials: C
authors.lastname: Tang