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Forward error correction supported 150 Gbit/s error-free wavelength conversion based on cross phase modulation in

H Hu1, J Dahl Andersen, A Rasmussen

  • 1DTU Fotonik, Department of Photonics Engineering,Technical University of Denmark, Ørsteds Plads, Building 343, DK-2800 Kgs. Lyngby, Denmark.

Optics Express
|March 14, 2013
PubMed
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A new forward error correction (FEC) module was implemented in an optical signal processing experiment. The system achieved truly error-free 150 Gbit/s data transmission after two cascaded nonlinear optical processes.

Area of Science:

  • Photonics and Optical Communications
  • Signal Processing
  • Integrated Optics

Background:

  • High-speed optical signal processing is crucial for modern telecommunications.
  • Nonlinear optical processes offer pathways for advanced signal manipulation.
  • Forward error correction (FEC) is essential for maintaining data integrity.

Purpose of the Study:

  • To develop and implement a forward error correction (FEC) module for optical signal processing.
  • To evaluate the performance of FEC after cascaded nonlinear optical processes.
  • To demonstrate error-free high-speed data transmission.

Main Methods:

  • Implementation of a novel FEC module.
  • Experimental setup involving cascaded nonlinear optical processes: all-optical wavelength conversion in silicon nanowire and demultiplexing in highly nonlinear fiber (HNLF).

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  • Utilizing cross-phase modulation (XPM) for wavelength conversion and off-center filtering.

    • Main Results:

    • Successful operation of the FEC module after optical signal processing.
    • Demonstration of truly error-free 150 Gbit/s data transmission (excluding overhead).
    • Verification of FEC code integrity following XPM-based wavelength conversion and demultiplexing.

    Conclusions:

    • The integrated FEC module effectively corrects errors in high-speed optically processed data.
    • Cascaded nonlinear optical processes can be employed without compromising FEC performance.
    • This work paves the way for robust, high-capacity optical communication systems.