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Low-crosstalk silicon photonics arrayed waveguide grating

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Abstract

In this Letter, we demonstrate a 1×4 low-crosstalk silicon photonics cascaded arrayed waveguide grating, which is fabricated on a silicon-on-insulator wafer with a 220-nm-thick top silicon layer and a 2 μm buried oxide layer. The measured on-chip transmission loss of this cascaded arrayed waveguide grating is ~4.0 dB, and the fiber-to-waveguide coupling loss is 1.8 dB/facet. The measured channel spacing is 6.4 nm. The adjacent crosstalk by characterization is very low, only ?33.2 dB. Compared to the normal single silicon photonics arrayed waveguide grating with a crosstalk of ~?12.5 dB, the crosstalk of more than 20 dB is dramatically improved in this cascaded device.

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DOI:10.3788/col201715.041301

所属栏目:Integrated optics

收稿日期:2016-11-30

录用日期:2017-01-13

网络出版日期:2017-02-20

作者单位    点击查看

Zhiqun Zhang:Department of Library, Kunming University of Science and Technology, Kunming 650500, ChinaCollege of Science, Kunming University of Science and Technology, Kunming 650500, China
Juan Hu:College of Science, Kunming University of Science and Technology, Kunming 650500, China
Hua Chen:College of Science, Kunming University of Science and Technology, Kunming 650500, China
Fangjiang Li:College of Science, Kunming University of Science and Technology, Kunming 650500, China
Lei Zhao:College of Science, Kunming University of Science and Technology, Kunming 650500, China
Jinbin Gui:College of Science, Kunming University of Science and Technology, Kunming 650500, China
and Qing Fang:College of Science, Kunming University of Science and Technology, Kunming 650500, China

联系人作者:联系作者(qingfang@kmust.edu.cn)

备注:This work was partially supported by the National Natural Science Foundation of China under Grant Nos. 61674072, 61565011, and 51304097.

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引用该论文

Zhiqun Zhang, Juan Hu, Hua Chen, Fangjiang Li, Lei Zhao, Jinbin Gui, and Qing Fang, "Low-crosstalk silicon photonics arrayed waveguide grating," Chinese Optics Letters 15(4), 041301 (2017)

CrossRef返回数据

【1】Hao Jia, Ting Zhou, Lei Zhang, Jianfeng Ding, Xin Fu, Lin Yang. Optical switch compatible with wavelength division multiplexing and mode division multiplexing for photonic networks-on-chip. Optics Express, 2017, 25(17): 20698 

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