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Optical Engineering

Practical fabrication and analysis of an optimized compact eight-channel silicon arrayed-waveguide grating
Author(s): Hongqiang Li; Yaoting Bai; Xiaye Dong; Enbang Li; Yang Li; Wenqian Zhou; Yu Liu
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Paper Abstract

We have designed, fabricated, and characterized a 1×8 ultra-small compact arrayed-waveguide grating (AWG) on silicon-on-insulator (SOI) in a fiber grating demodulation integration microsystem. The miniature AWG, consisting of Si photonic wire waveguides, was designed using the complete modeling simulation in the beam propagation method. The device was fabricated on an SOI substrate and evaluated in the wavelength range around 1.55 μm, with an effective area of 230×160  μm . Clear demultiplexing characteristics were observed with a channel spacing of 1.91 nm. The influence of the waveguide widths on crosstalk defined by adjacent channel crosstalk and phase error is discussed. Insertion loss, crosstalk, and nonuniformity of loss were measured to be −3.18 , −23.1 , and −1.35  dB , respectively. Thus, the AWG design is the best choice for a fiber Bragg grating demodulation microsystem.

Paper Details

Date Published: 13 June 2013
PDF: 6 pages
Opt. Eng. 52(6) 064602 doi: 10.1117/1.OE.52.6.064602
Published in: Optical Engineering Volume 52, Issue 6
Show Author Affiliations
Hongqiang Li, Tianjin Polytechnic Univ. (China)
Yaoting Bai, Tianjin Polytechnic Univ. (China)
Xiaye Dong, Tianjin Polytechnic Univ. (China)
Enbang Li, The Univ. of Sydney (Australia)
Yang Li, Tianjin Polytechnic Univ. (China)
Wenqian Zhou
Yu Liu, Tianjin Polytechnic Univ. (China)

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