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An InP-based vortex beam emitter with monolithically integrated laser

Author

Listed:
  • Juan Zhang

    (Tsinghua University)

  • Changzheng Sun

    (Tsinghua University)

  • Bing Xiong

    (Tsinghua University)

  • Jian Wang

    (Tsinghua University)

  • Zhibiao Hao

    (Tsinghua University)

  • Lai Wang

    (Tsinghua University)

  • Yanjun Han

    (Tsinghua University)

  • Hongtao Li

    (Tsinghua University)

  • Yi Luo

    (Tsinghua University)

  • Yi Xiao

    (the University of Tokyo)

  • Chuanqing Yu

    (the University of Tokyo)

  • Takuo Tanemura

    (the University of Tokyo)

  • Yoshiaki Nakano

    (the University of Tokyo)

  • Shimao Li

    (Sun Yat-sen University)

  • Xinlun Cai

    (Sun Yat-sen University)

  • Siyuan Yu

    (Sun Yat-sen University)

Abstract

Semiconductor devices capable of generating a vortex beam with a specific orbital angular momentum (OAM) order are highly attractive for applications ranging from nanoparticle manipulation, imaging and microscopy to fiber and quantum communications. In this work, an electrically pumped integrated OAM emitter operating at telecom wavelengths is fabricated by monolithically integrating an optical vortex emitter with a distributed feedback laser on the same InGaAsP/InP epitaxial wafer. A single-step dry-etching process is adopted to complete the OAM emitter, equipped with specially designed top gratings. The vortex beam emitted by the integrated device is captured and its OAM mode purity characterized. The integrated OAM emitter eliminates the external laser required by silicon- or silicon-on-insulator-based OAM emitters, thus demonstrating great potential for applications in communication systems and the quantum domain.

Suggested Citation

  • Juan Zhang & Changzheng Sun & Bing Xiong & Jian Wang & Zhibiao Hao & Lai Wang & Yanjun Han & Hongtao Li & Yi Luo & Yi Xiao & Chuanqing Yu & Takuo Tanemura & Yoshiaki Nakano & Shimao Li & Xinlun Cai & , 2018. "An InP-based vortex beam emitter with monolithically integrated laser," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05170-z
    DOI: 10.1038/s41467-018-05170-z
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