Eight-wavelength receiver optical subassembly based on silica hybrid integrated technology

被引：5

作者：

Li, Shaoyang ^{[1
]}

Wang, Liangliang ^{[1
]}

An, Junming ^{[1
,2
]}

Zhang, Jiashun ^{[1
]}

Huang, Ningbo ^{[3
]}

He, Wei ^{[3
]}

Wang, Yue ^{[1
]}

Yin, Xiaojie ^{[1
]}

Wang, Hongjie ^{[1
]}

Li, Jianguang ^{[1
]}

Wu, Yuanda ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China

[3] Henan ShiJia Photons Technol Co Ltd, Hebi, Peoples R China

来源：

OPTICAL ENGINEERING | 2019年 / 58卷 / 09期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

optical interconnects; waveguides; hybrid integrated; demultiplexer; APD-ROSA;

D O I：

10.1117/1.OE.58.9.097101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A receiver optical subassembly (ROSA) based on hybrid integrated technology is designed and fabricated. It consists of an 8-channel arrayed waveguide grating (AWG) with 2% refractive index difference, two 4-channel positive intrinsic-negative photodetector arrays, and two 4-channel transimpedance amplifier arrays. A flat-top optical spectrum was observed because the output waveguides have a multimode structure, and the average 1-dB bandwidth of AWG channels is 2.8 nm. The insertion loss of all channels is between -1.8 and -2.9 dB, and the cross talk between adjacent channel is less than -20 dB. The ROSA shows a maximum responsivity of 0.4 A/W and 3-dB bandwidth of more than 22 GHz for four channels, which can meet the data transmission rate of 25 Gb/s. In the future, we will improve the fabrication process to achieve a transmission rate of 8 x 25 Gb/s. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).

引用

页数：5

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