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Monolithic integration of VCSEL and coupled cavity RCEPD for short-reach single-fiber bi-directional optical interconnects

  • Qi Wei
  • Kai LiuEmail author
  • Jun-Wei Luo
  • Hui-Ze Fan
  • Xiao-Min Ren
  • Yong-Qing Huang
  • Jia-Rui Fei
  • Xiao-Feng Duan
  • Qi Wang
  • Shi-Wei Cai
Regular Article
  • 22 Downloads

Abstract

In this paper, we propose a monolithic integration of vertical-cavity surface-emitting laser (VCSEL) and coupled cavity resonant cavity enhancement photodiode (ccRCEPD). Based on this structure, a couple of matched chips is designed for single fiber bidirectional optical interconnects. That type of integration can easily put VCSEL and (photodiode) PD into one package, which not only reduces the costs of the device packages and even cut the costs of the optical system like beam splitter, but also can save the space in optical transceiver to make it tight. These chips’ VCSELs show a threshold current of 1.6 mA and 1.7 mA, and a slope efficiency of 0.74 W/A and 0.97 W/A. VCSELs’ modulation bandwidth is 9.5 GHz and 11.0 GHz, and PDs’ response bandwidth is 10 GHz. Furthermore, the modulation bandwidth can be higher if the material of the multiple quantum wells (MQWs) is transformed GaAs/AlGaAs to InGaAs/AlGaAs. And by optimizing, the 3dB bandwidth of PD will be higher.

Graphical abstract

Keywords

Optical Phenomena and Photonics 

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Copyright information

© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Qi Wei
    • 1
  • Kai Liu
    • 1
    Email author
  • Jun-Wei Luo
    • 1
  • Hui-Ze Fan
    • 1
  • Xiao-Min Ren
    • 1
  • Yong-Qing Huang
    • 1
  • Jia-Rui Fei
    • 1
  • Xiao-Feng Duan
    • 1
  • Qi Wang
    • 1
  • Shi-Wei Cai
    • 1
  1. 1.Institute of Information Photonics and Optical Communications, Beijing University of Posts and TelecommunicationsBeijingP.R. China

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