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Dual-layer optical encryption fluorescent polymer waveguide chip based on optical pulse-code modulation technique

Author

Listed:
  • Chunxue Wang

    (Jilin University)

  • Daming Zhang

    (Jilin University)

  • Jian Yue

    (Jilin University)

  • Xucheng Zhang

    (Jilin University)

  • Hang Lin

    (Jilin University)

  • Xiangyi Sun

    (Jilin University)

  • Anqi Cui

    (Jilin University)

  • Tong Zhang

    (Jilin University)

  • Changming Chen

    (Jilin University)

  • Teng Fei

    (Jilin University)

Abstract

Information encryption technique has broad applications in individual privacy, military confidentiality, and national security, but traditional electronic encryption approaches are increasingly unable to satisfy the demands of strong safety and large bandwidth of high-speed data transmission over network. Optical encryption technology could be more flexible and effective in parallel programming and multiple degree-of-freedom data transmitting application. Here, we show a dual-layer optical encryption fluorescent polymer waveguide chip based on optical pulse-code modulation technique. Fluorescent oligomers were doped into epoxy cross-linking SU-8 polymer as a gain medium. Through modifying both the external pumping wavelength and operating frequency of the pulse-code modulation, the sender could ensure the transmission of vital information is secure. If the plaintext transmission is eavesdropped, the external pumping light will be switched, and the receiver will get warning commands of ciphertext information in the standby network. This technique is suitable for high-integration and high-scalability optical information encryption communications.

Suggested Citation

  • Chunxue Wang & Daming Zhang & Jian Yue & Xucheng Zhang & Hang Lin & Xiangyi Sun & Anqi Cui & Tong Zhang & Changming Chen & Teng Fei, 2023. "Dual-layer optical encryption fluorescent polymer waveguide chip based on optical pulse-code modulation technique," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40341-7
    DOI: 10.1038/s41467-023-40341-7
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    References listed on IDEAS

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