Optical transmitter module with hybrid integration of DFB laser diode and proton-exchanged LiNbO3 modulator chip

被引:1
作者
Wang, Xuyang [1 ,2 ,3 ]
Jia, He [3 ]
Li, Junhui [3 ]
Guo, Yumei [3 ]
Liu, Yu [1 ]
机构
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Beijing Shiweitong Sci & Technol Co Ltd, Beijing 100176, Peoples R China
关键词
optical transmitter module; hybrid integration; DFB laser chip; LiNbO3 modulator chip; LITHIUM-NIOBATE;
D O I
10.1088/1674-4926/43/6/062303
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In this work, a hybrid integrated optical transmitter module was designed and fabricated. A proton-exchanged Mach-Zehnder lithium niobate (LiNbO3) modulator chip was chosen to enhance the output extinction ratio. A fiber was used to adjust the rotation of the polarization direction caused by the optical isolator. The whole optical path structure, including the laser chip, lens, fiber, and modulator chip, was simulated to achieve high optical output efficiency. After a series of process improvements, a module with an output extinction ratio of 34 dB and a bandwidth of 20.5 GHz (from 2 GHz) was obtained. The optical output efficiency of the whole module reached approximately 21%. The link performance of the module was also measured.
引用
收藏
页数:6
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