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Integrated photonic decoder with complementary code processing and balanced detection for two-dimensional optical

K Takiguchi1, M Okuno, H Takahashi

  • 1NTT Photonics Laboratories, NTT Corporation, Atsugi, Kanagawa, Japan. taki@aecl.ntt.co.jp

Optics Letters
|March 7, 2007
PubMed
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We developed a novel photonic decoder for optical code division multiple access systems. This device effectively reduces interference and supports high-speed data transmission.

Area of Science:

  • Photonics
  • Optical Communications
  • Signal Processing

Background:

  • Optical Code Division Multiple Access (OCDMA) systems offer enhanced security and capacity.
  • Existing decoders face challenges with cross-correlation interference and complexity.
  • Efficient decoding is crucial for high-speed OCDMA networks.

Purpose of the Study:

  • To propose and demonstrate a novel integrated photonic decoder for two-dimensional OCDMA.
  • To address cross-correlation interference in OCDMA systems.
  • To achieve high-speed data transmission with the proposed decoder.

Main Methods:

  • Design and integration of a photonic decoder using multiplexers-demultiplexers, variable delay lines, and a coupler.
  • Implementation of complementary code processing.

Related Experiment Videos

  • Utilization of balanced detection techniques.
  • Experimental validation through 10 Gbit/s optical transmission.

    • Main Results:

    • Successful demonstration of a novel integrated photonic decoder.
    • Effective reduction of cross-correlation interference.
    • Achieved 10 Gbit/s data transmission, validating the decoder's performance.

    Conclusions:

    • The proposed integrated photonic decoder is effective for two-dimensional OCDMA systems.
    • The design offers a promising solution for reducing interference and enabling high-speed optical networking.
    • This technology advances the capabilities of OCDMA networks.